What real-world applications depend on the relationship between distance, average speed, and time?

Answers

Answer 1

One real-world application of the relationship between distance, average speed and time is calculating the mileage of a car.

How do you use speed in daily life?

Depending on your goals, you may walk more quickly or slowly when you are moving. Depending on the amount of traffic, you might drive your car at 50, 65, or even 5 miles per hour. Your instantaneous speed, or speed at that precise moment or location, is what you can see on the speedometer.

How is distance used in real life?

It can be used in many different ways in daily life. In navigation, it is utilized. The distance formula is used by a pilot to determine how far apart their plane is from the other plane. They locate the plane's coordinate before using the distance formula to calculate the distance.

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Related Questions

A plane glides towards a ground-based radar dish. Radar locates the plane at a distance D = 22 km from the dish, at an angle θ = 51° above horizontal. Part C write an expression for position vector D, in rectangular Cartesian unit-vector for using the coordinate axis provided in the problem statement

Answers

The correct answer is :

Unit vectors I and j along the x-axis and y-axis, respectively, define the Cartesian coordinate system. The radial unit vector r, which indicates the direction from the origin, and the unit vector t, which is orthogonal (perpendicular) to the radial direction, together create the polar coordinate system.

We can obtain the horizontal component by applying the trigonometric identity of Cos(Ф), and if we obtain the component on the x axle, such as 22000 (m)×Cos(51°) = x, we may determine that x = 13845.05 metres. We need to obtain the vector components because we already know the distance and the angle.

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In the equation for Newton's second law, what does Fnet stand for?

Question 14 options:

Net external force


Internal force


Frictional force

Answers

In the Newton's Second Law, F net stands for the net external force. Newton's second law is based upon the relationship between acceleration and mass of an object. Thus, A is the correct option.

What is Force?

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. Force is an influence that can change the motion of an object.

F net = m × a

where, F net = Net external force applied on an object

m = mass of an object

a = acceleration

An external force can change the velocity of an object which can result into acceleration of that object. This acceleration depends upon mass of the body. Therefore, A is the correct option.

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Differentiate between velocity, acceleration, and deceleration.

(This is for my cyber physical education, i don't have physics yet but i couldn't find physical education in the pick a subject :/)

DO NOT COPY FROM WEBSITE !!!!!!!!!!!!!!!!!!!!!!!!!!!
IF COPIED I WILL REPORT!!!!!!!!

Answers

Velocity is the change in displacement of an object with time, while acceleration is the change in velocity of an object with time and deceleration is the acceleration in the negative direction.

What is acceleration?

The acceleration of an object is the rate of change of velocity of the object with time.

a = Δv/Δt

where;

a is acceleration of the objectΔv is change in velocityΔt is change in time of motion

What is velocity?

The velocity of an object the rate of change of displacement of the object with time.

v = Δx/Δt

where;

Δx is change in displacementΔt is change in time

What is deceleration?

Deceleration is acceleration in the acceleration of an object in the negative direction.

Thus, velocity is the change in displacement of an object with time, while acceleration is the change in velocity of an object with time and deceleration is the acceleration in the negative direction.

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WHAT IS greenhouse EFFECT?

Answers

Answer: the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.

Explanation:

Answer:

The greenhouse effect is a process that occurs when energy from a planet's host star goes through its atmosphere and heats the planet's surface, but greenhouse gases in the atmosphere prevent some of the heat from returning directly to space, resulting in a warmer planet

Two charged particles are a distance of 1.92 m from each other. One of the particles has a charge of 7.24 nC, and the other has a charge of 3.78 nC.

What is the magnitude (in N) of the electric force that one particle exerts on the other?

Is the force attractive or repulsive?

Answers

1. The magnitude (in N) of the electric force that one particle exerts on the other is 6.68×10⁻⁸ N

2. The force is repulsive

Coulomb's law equation

Colulomb's law states as follow:

F = Kq₁q₂ / r²

Where

F is the force of attraction K is the electrical constant q₁ and q₂ are two point charges r is the distance apart

With the above formula, we can determine the force as illustrated below:

The following data were obtained from the question:

Distance apart (r) = 1.92 mCharge 1 (q₁) = 7.24 nC = 7.24×10⁻⁹ CCharge 2 (q₂) = 3.78 nC = 3.78×10⁻⁹ CElectric constant (K) = 9×10⁹ Nm²/C²Force (F) =?

F = Kq₁q₂ / r²

F = (9×10⁹ × 7.24×10⁻⁹ × 3.78×10⁻⁹) / (1.92)²

F = 6.68×10⁻⁸ N

Thus, the magnitude of the force that one particle exert on the other is 6.68×10⁻⁸ N

The force is repulsive since the charges on each particle has the same sign

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find the derivative of y with respect to time:. 2√t/3(√t)^2​

Answers

Answer:

See below

Explanation:

2√t/(3(√t)^2)        I added parentheses for what I think you were asking ​

This equals   2/3  *  t^1/2  / t

                       = 2/3  * t ^-1/2

  derivative is     -1/2  * 2/3  * t ^(-1/2 -1)

                             - 1/3 t^(-3/2)

According to the conservation of momentum, if a smaller football player collides with a
much larger football player, what can be said about the movement of each player after
the collision?

Answers

Although the bigger football player will still move, his speed will be substantially slower than the smaller players due to his greater mass.

Two equal and opposing forces are generated at the place of collision when the collision occurs. The more enormous mass will be forced to accelerate by force applied to it, and the smaller group will be forced to slow down by force applied to it.Larger masses will experience less acceleration due to their lower acceleration, which will result in a lower velocity.Momentum happens whenever a person or item moves, but it is especially crucial in sports and situations where collisions happen. A simple method to understand momentum is to see it as a tool that a sportsperson can use to affect a different object or an opponent. A hockey player's high-velocity puck hit can have enough momentum to push the goalie backward. Even though a puck is light and has little mass, National Hockey League players may hit it at speeds of over 100 mph (160 km/h) because momentum is a function of mass and velocity. The puck and the goaltender, along with the goalie's pads, mask, gloves, skates, and stick, briefly unite as the puck strikes the goalie.

Complete question: According to the conservation of momentum, if a more minor football player collides with a much larger football player, what can be said about each player's movement after the collision?

A. The larger football player will move, but because of his larger mass, his velocity will be much slower than the smaller player

B. The smaller football player will be stopped completely, his mass being not enough to move the larger one

C. The larger football player will have to start moving towards the smaller one as it collides if there is to be any effect

D. The smaller football player will experience a larger force than the larger football player

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What do the three dream theories all have in common?

Answers

Dream theories have in common that they are related to conceptions about reality.

What are dream theories?

Dream theories are a series of theories that focus on explaining the dreams that an individual experiences when sleeping.

What theories of sleep exist?

There are three main theories about dreams that are:

Activation-synthesis theory: This theory states that the brain is randomly activated during sleep and that brain activity is generally associated with memories and sensory information.

Theory of psychoanalysis: This theory states that dreams contain unconscious information for the individual about his interpretation of reality. This information is later synthesized and processed by reason so that the individual takes it as a meaningful message.

Threat Rehearsal Theory: This theory states that dreams are "rehearsals" of risk situations in which situations that are considered dangerous to the individual are simulated and in which the brain is trained to act in them.

What similarities do these theories have?

The main similarity that these three theories have is that they are related to the interpretation that the individual has of his reality and the sensory information of his interaction with the environment.

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A Navy rescue plane drops a package of emergency rations to victims of a hurricane. If the plane is traveling horizontally at 62.0 m/s and is 100 m above the ground. How long was the package in the air?

Answers

Answer:

4.5s

Explanation:

Same amount of time it takes for the package to land if it was dropped from an helicopter hovering on the spot. As long as the plane wasn't diving towards the victims - but at that point it wouldn't be traveling horizontally, the supplies have no starting vertical velocity, so they take

[tex]100 m = \frac12 (9.81 ms^-^2)t^2 \rightarrow t^2 \approx 20.39 s^2 \rightarrow t \approx 4.5s[/tex] to hit the ground, air resistance notwithstanding. The plane speed will just tell you that the package will land a bit short of 300 meters in the direction the plane was traveling.

In the movie Polar Express the hero boy character walks across the top of the train in order to return a lost ticket to another child. Instead he encounters a man.


Assume the train is traveling in a perfectly straight line, and both the train and boy maintain constant speeds. The boy's initial position is 1.5 m and the man's initial position is 17.2 m. If the train/man are moving at a constant velocity of 72 m/s, and the boy is walking at a constant velocity of 0.5 m/s, what position will they all have when the boy reaches the man? Round your answer to the nearest 1 m.

Answers

This issue is best answered using a calculator and trigonometric concepts to provide the most accurate answer. Finding the total of all horizontal (east-west) and total of all vertical (north-south) displacements is the first stage.

Applying the Pythagorean theorem leads to the magnitude of the resultant (R).

R2 = (30.0 m)2 + (4.0 m)2 = 916 m2

R = Sqrt(916 m2)

R = 30.3 meters

This angle theta is the angle between west and the resultant. Directions of vectors are expressed as the counterclockwise angle of rotation relative to east. So the direction is 7.59 degrees short of 180 degrees. That is, the direction is ~172 degrees.

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Please select the correct answer. Physics is basically divided into experimental and theoretical physics. Physics is divided into practical and theoretical physics. Based on physics, it is divided into practical and theoretical physics. Based on physics, it is divided into experimental and theoretical physics.

Answers

Physics can be broadly divided into experimental physics and theoretical physics.

Theoretical physics is a branch of physics that uses mathematical models and abstractions of physical objects and systems to rationalize, explain, and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to study these phenomena.

Scientific progress in general depends on the interplay of experimental research and theory. In some cases, theoretical physics adheres to mathematical rigor and gives little weight to experiments and observations.

Theoretical: The ratio of possible ways an event can occur to the total number of outcomes. Experimental: The ratio of the number of occurrences of the event to the total number of outcomes.

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Answer:

Physics can be broadly divided into experimental physics and theoretical physics.

Explanation:

Taking into account the atomic structure, what do the period and the group of the periodic table mean?

Answers

The description of the period and the group in accordance with the atomic structure can be found below.

What is the periodic table?

Periodic table is the tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same group (column).

The periodic table is made up of groups and periods. The groups are the vertical columns of the periodic table arranged based on the outer shell electrons while periods are the horizontal rows of the periodic table.

Elements in the same period have the same number of outer electrons and have the same number of electron shells while elements in the same group have the same number of outermost electrons, hence, behave chemically similar.

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A merry-go-round of radius 2.00m is rotating about a frictionless pivot. it makes one revolution every 5.00s. the moment of inertia of the merry-go-round (about an axis through its center) is 500kgm2. A child of mass 25.0kg, originally standing at the rim, walks in to the exact center. What is the new angular speed of the merry-go-round?

Answers

The new angular speed of the merry-go-round is 1.05 rad/s.

What is the principle of conservation of angular momentum?

The law of conservation of angular momentum states that when the net external torque acting on a system about a given axis is zero, the total angular momentum of the system about that axis remains constant.

I₁ω₁ = I₂ω₂

where;

I₁ is the initial moment of inertiaI₂ is the final moment of inertiaω₁ is the initial angular velocityω₂ is the final angular velocity

Initial angular velocity of the merry go round is calculated as follows;

ω₁  = 2π rad / (5 s) = 1.257 rad/s

Moment of inertia of the child = MR² = 25 x 2² = 100 kgm²

New angular speed of the merry go round

ω₂ = I₁ω₁/I₂

ω₂ = (500 x 1.257) / (500 + 100)

ω₂ = 1.05 rad/s

Thus, the new angular speed of the merry-go-round is 1.05 rad/s.

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How tall is a stack of 12 of these boxes?

Answers

The total length of the boxes  stacked up is determined as 60 cm.

What is stack of boxes?

A stack of boxes is a group of boxes packed up or aligned together in an orderly manner.

Stacking up boxes allow us to keep those special items in an orderly manner which makes them easily accessible in the future whenever necessary.

If a box measures 5 cm, the total length of the 12 boxes is calculated as follows;

total length of the boxes = height of one x total number of boxes

total length of the boxes = 5 cm x 12

total length of the boxes = 60 cm

Thus, the total length of the boxes  stacked up is determined as 60 cm.

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The complete question is below:

A box measures 5 cm. How tall is a stack of 12 of these boxes?

An autographed baseball rolls off of a 1.2 m

high desk and strikes the floor 0.76 m away

from the desk. How fast was it rolling on the desk before

it fell off? The acceleration of gravity is 9.81 m/s2.

Answers

The autographed baseball rolled off at 0.3762m/s before it fell off.

What is acceleration?

Acceleration is the rate of change of the velocity of an object with respect to time.

Given the following data:

Initial velocity = 0 m/s (assuming it started from rest).

Vertical distance = 1.2 meters

Horizontal distance = 0.76 meters

Acceleration due to gravity = 9.81

To find how fast the autographed baseball was rolling on the desk before it fell off:

we will use the second equation of motion to determine the time required:

S = ut + 1/2at²

Where:

S is the displacement or distance covered.

u is the initial velocity.

a is the acceleration.

t is the time measured in seconds.

Substituting the given values into the formula, we have;

S = ut + 1/2at²

=0*t + 1/2 * 9.81 * t²

t = 2.02 seconds

Next, we would determine the horizontal speed:

horizontal speed= horizontal distance/time

horizontal speed=0.76/2.02

horizontal speed=0.3762m

Horizontal speed = 0.3762m/s

Therefore, the autographed baseball rolled off at 0.3762m/s before it fell off.

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Critical Thinking 1. One day, a group of neighbourhood degs Started barking on their own. The residents living in that area are left wondering what provoked the dogs to bark. What could be the reason?​

Answers

The reason behind the barking of the group of neighborhood dogs could be Territorial/Protective or  Alarm/Fear.

What is bark or barking?

Dogs are known for making the most prevalent barking noises. Wolves, coyotes, foxes, seals, and barking owls are a few other creatures that make this sounds. The most typical onomatopoeia for this sound in English, particularly for large dogs, is "woof." The word "bark" can also be used to describe the sound made by numerous canids. A bark is a brief vocalization, as per the researchers at the University of Massachusetts Amherst.

Territorial/Protective: When a person or another animal enters their perceived area, your dog may bark excessively, depending on the breed. The barking frequently gets louder as the threat draws closer. When your dog barks in this manner, he will appear vigilant and sometimes even hostile.

Alarm/Fear: Some dogs will bark in alarm or fear at any sound or item that draws their attention or alarmed them. It's not just in their home country where this can occur. When they are afraid, their tails will be tucked and their ears will be pulled back.

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A competitive go-cart driver is traveling 32 m/s. He sees a caution flag go up, so he slows at a rate of -1.5 m/s2 in 10.8 s. What is his final velocity?

Answers

15.8m/s is the final velocity

Deceleration is calculated by dividing the final velocity minus the initial velocity by the time it takes for this velocity to drop. Here the acceleration formula can be used with a negative sign to determine the deceleration value.

The rate of change of the velocity of an object in the time is known as Acceleration . Velocity is defined as the speed of an object in motion by time.

         

here we know that the initial velocity is 32m/s.

the deceleration is -1.5m/s2 and the time taken is 10.8s

so from the formula

                                       V=U + at

  = 32+-1.5 x10.8

  =15.8m/s          

So the final velocity is 15.8m/s

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If you throw a baseball horizontally with an intial speed of 25.0 m/s from ha height of 1.80 m how long will it take the ball to hit the ground

Answers

The time taken for the ball to hit the ground from a height of 1.8 m is 0.61 seconds

How to determine the time

From the question given above, the following data were obtained:

Initial velocity (u) = 25 m/sHeight (h) = 1.8 mAcceleration due to gravity (g) = 9.8 m/s²Time (t) =?

The time taken for the ball to hit the ground can be obtained as illustrated below:

h = ½gt²

1.8 = ½ × 9.8 × t²

1.8 = 4.9 × t²

Divide both side by 4.9

t² = 1.8 / 4.9

Take the square root of both side

t = √(1.8 / 4.9)

t = 0.61 s

Thus, it will take 0.61 seconds for the ball to hit the ground

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A sample contains 10 g of a radioactive isotope. How much radioactive
isotope will remain in the sample after half-life?
• A. 5.0 g
• B. 7.5 g
O c. 2.5 g
O D. 10.0 g

Answers

c. 2.5 g radioactive isotope will remain in the sample after half-life

The sample will degrade from 10 g to 5 g over the first half-life. The isotope's second half-life will see a 5 g to 2.5 g decay.

What exactly are radioactive isotopes used for?

There are several uses for radioactive isotopes. Cobalt-60, for instance, is frequently used as a radiation source in medicine to halt the spread of cancer. For diagnostic reasons and in studies on metabolic processes, other radioactive isotopes are utilised as tracers.

used in oil well research and to find leaks in industrial pipe networks. used in nuclear medicine for cancer diagnosis and nuclear cardiology. used to examine the metabolism and development of bones.

By neutron activation in a nuclear reactor, which is the most typical technique of creating radioisotopes

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A 150.0 g pot of water at room temperature (22.0°C) is placed on a stove. How much heat is required to change this water to steam at 100.0°C?

Answers

The amount of heat required to change this water to steam at 100.0°C is 48,976.2 J.

Heat required to change the state of the water

The amount of heat required to change the temperature of the water at 22 degrees Celsius to 100 degrees Celsius is calculated as follows;

Q = mcΔθ

where;

m is mass of the waterc is specific heat capacity of water = 4.186 J/gCΔθ is change in temperature of the water

Substitute the given parameters and solve for the energy required to change the phase of the water.

Q = (150g)(4.186 J/gC)(100C - 22C)

Q = 48,976.2 J

Thus, the amount of heat required to change this water to steam at 100.0°C is 48,976.2 J.

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Which statements describe supporters of the New Jersey Plan? Choose two correct answers.
They thought that each state should have equal representation in Congress.
They thought that the largest states should have the most say in the new government.
They believed that the United States had been created by the states rather than the people.
They wanted the new national government to have a bicameral legislature.
They feared that the voices of the people would get lost if states were given too much power.

Answers

Answer:

Your answers are A and C.

Explanation:

Have an amazing day/night. I am so sorry I do not have the explanation you are looking for. But I did get this right on the assignment.

When wire rope is used for lifting with a bridge crane, the ratio of the diameter of the sheave to the diameter of the wire rope should be no less than…?

Answers

The ratio of the sheave diameter should be at least 20 times and no less than 18 times of the diameter of the wire rope.

Always make sure that the pulley or sheave's groove diameter is more than the rope's actual diameter. However, the rope will tend to flatten if the groove diameter is too wide, and it will squeeze the rope if it is too tiny.

The rope pitch diameter of every sheave utilized in the boom hoist reeving system must be at least 18 times the rope's nominal diameter.

We advise a sheave diameter about 20 times that of the rope since a sheave's Outside Diameter is typically 1 to 2 inches larger than its Pitch Diameter.

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I need before 11:28

8. An object is sliding on a surface accelerating rightward,
according to the diagram on the right.
a. Use the mass and acceleration to find the Fnet.
b. Use the Fnet and Fapp to find the Ffrict.
c. Use the mass and acceleration due to gravity, 9.8 m/s²
to find the Fgrav.
d. Use the Fgrav to find the Fnorm-
Ffrict =
Fnet =
mass = 60 kg
r
Fnorm=
Fgrav =
Fapp=1257

Answers

Answer:

b

Explanation:

A marble is thrown downward at a speed of 10.0 m/s from the top of a 30.0 m tall
building. 0.50 s later, a second marble is thrown downward. At what speed must the
second marble be thrown so that the two marbles reach the ground at the same time?

Answers

The speed of the second marble must be 14.8 m/s so that the two marbles reach the ground at the same time.

What is the time taken bey the first stone to reach the ground?

The time taken by the first stone to reach the ground is calculated using the formula below:

h = ut + ¹/₂gt²

where:

h is the heightu is initial velocity or speedt is timeg is acceleration due to gravity

From the data provided;

h = 30, u = 10m/s, g = 9.8 m/s

30 = 10t  + 0.5 * 9.8t²

30 = 10t + 4.9t²

4.9t² + 10t - 30 = 0

t = 1.65 s

For the second marble, time taken = 1.65 - 0.50

t = 1.15 s

Initial velocity, u will be:

30 = u(1.15)  + 0.5 * 9.8 * 1.15²

1.15u = 30 - 12.96

u = 14.8 m/s

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What is the motional kinetic energy of a 25 kg object moving at a speed of 10 m/s?

Answers

1250kgm²/s is the motional kinetic energy of a 25kg object moving at a speed of 10m/s

Kinetic energy of an object is defined as the energy which is possessed when that is  in motion. It is the energy of the kinetic mass of an object. Kinetic energy is never negative and is a scalar quantity. That is, it shows only size, not orientation.

Given to us

Mass of the object, m=25kg

Velocity of the object, v=10m/s  

K.E=1/2x25x10²

 =1250

Kinetic energy is directly proportional to the mass and velocity squared (K.E.) of an object. =1/2xMxV². If the mass is in kilograms and the velocity is in meters/second, then the kinetic energy is in kilograms - meters squared/second.

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Which is not the measurement of speed
Km/h S/M Mph M/S MS

Answers

MS. The / means “per” basically. so everything is something per something. speed is defined as distance/time. so for example, km/h is speed because km (distance) is divided (the /) by hours (time)


A drone starts from rest and travels 50m with an acceleration of 5 m/s2. How long does
this take?

A 4.5 s
B 20 s
C 10.5 s
D 48.5 s

Answers

A drone starts from rest and travels 50m with an acceleration of 5 m/s2. it takes 4.5s.

What is acceleration?

The rate at which an object's velocity with respect to time changes is referred to as acceleration in mechanics. They are vector quantities, accelerations. The direction of the net force acting on an object determines the direction of its acceleration.

u= 0m/s

s = 50m

a = 5m/s²

t = ?

s = ut + 1/2 at²

50 = 0 + 1/2 * 5 * t²

t² = 50 *2/5

t² = 20s

t = 4.47s

t = 4.5s

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.......................is a force, measured in newtons.



Weight



Mass



Gravity

Answers

Answer:

Weight

Explanation:

If it is wrong then tell me to edit my answer

Weight is a force caused by gravity. Because it is a force, it is also measured in Newtons .

A hockey puck slides off the edge of a horizontal platform with an initial velocity of 28.0 m/shorizontally in
a city where the acceleration due to gravity is 9.81 m/s2. The puck experiences no significant air resistance as
it falls. The height of the platform above the ground is 2.00 m. What is the angle below the horizontal of the
velocity of the puck just before it hits the ground?

Answers

The angle below the horizontal of the velocity of the puck just before it hits the ground is 12.6°.

Given:

v₀x=28m/s

v₀y=0m/s

y₀=2.00m

x₀=0m

we know that velocity of an object is defined as the speed of that thing in a direction. rate of change in  the velocity is acceleration . so here  first we are calculating the time and then we are finding the speed of the object

yf=y₀+v₀yt+1/2at²

yf=0

0=2.00m+0m/s+1/2(−9.8m/s²)t²

4.9 m/s² t²=2.00m

t=1.025s

Then using time to calculate the final x-position...

x=x₀+v₀xt+1/2at²

x=0m+(28ms)(0.64s)+0

x=28.7m/s

After we got the speed then finally we are putting that in a triangle and we are finding the angle.

tan(θ)=2.00/28.7

θ=12.6°

So from the above we got that the angle is 12.6°

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A fighter pilot is exposed to an acceleration of 3g in the horizontal direction during takeoff. Knowing that 1g-9.8 m/s² and that the mass of the fighter pilot is 51.7 kg. what force (in
Newtons) does the fighter pilot experience in the horizontal direction? This is the force that she feels "pressing her into the back of the seat."

Answers

1520 N Force she feels "pressing her into the back of the seat."

We have given in the statement :

In horizontal direction,

a = 3 g

a= 3×9.8 m/s^2

a= 29.4 m/s^2

Now using force formula to find the magnitude

F = m×a

F= 51.7 Kg ×  29.4 m/s^2

F= 1520 N

A push or pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on each of the objects. The force is no longer felt by the two objects after the interaction ends. Only when there is interaction do forces actually exist.The standard metric unit known as the Newton is used to quantify force. "N" stands for Newton in abbreviation.

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