Show:
Velocity
Acceleration
Kinematics 1
Kinematics 2
Kinematics 3
100
What is the equation for velocity? Be able to explain each component.
V = X / t X = Displacement (NOT distance) t = time
100
What is the equation for acceleration? Be able to explain each component.
What is a = v / t v is the difference in velocity (Vf - Vo) t is time
100
An object is moving at a velocity of 23 m/s. It accelerates to a velocity of 85 m/s over a time of 8.3 s. What acceleration did it experience?
a = (Vf - Vo) / t a = (85-23) / 8.3 = 7.5 m / s^2
100
An object, moving with a constant velocity, travels 274 m in 23 s. What is its velocity?
What is 11.9 m/s
100
An object accelerates from rest to a speed of 24 m/s over a distance of 56 m. What acceleration did it experience?
What is 5.14 m/s2
200
Explain the difference between velocity and average speed.
The main difference is that speed is a scalar and velocity is a vector. Speed is a function of distance and time, whereas velocity is a function of displacement and time.
200

What way can can acceleration be shown on a graph

What is the slope of a velocity-time graph
200
A train departs from its station at a constant acceleration of 5 m/s2. What is the speed of the train at the end of 20s?
100 m/s
200
An object is shot upwards, from the ground, with an initial velocity of 120 m/s. How high will it be after 4.0s?
What is 401.6 m
200
An object accelerates from rest to 85 m/s over a distance of 36 m. What acceleration did it experience?
What is 100.3 m/s2
300
An object is travelling at 50 m/s for a total of 10 s. What is the total displacement. Show your work!
What is 500m
300

When working with gravity, acceleration is given as?

g= -9.81m/s2

300
A ball is thrown straight down with a velocity of 12 m/s; what will be its velocity 2.0 s after being released?
What is -31.6 m/s
300
An object is dropped from the top of a building and strikes the ground 2.0s later. How tall is the building?
What is 19.6 m
300
An object is dropped from a 32 m tall building. How fast will it be going when it strikes the ground?
What is -25 m/s
400
An object is travelling at a constant velocity for a total of 25 seconds. In this time, the object covers 2500 m. What is the velocity of the object?
What is 100 m/s
400

Calculate the average acceleration of an object is travelling with a constant velocity of 50 m/s and suddenly crashes into a tree 5 seconds later. (Remember units!)

What is -10 m/s2

400
A ball is thrown straight up from the ground with an unknown velocity. It returns to the ground after 4.0 s. With what velocity did it leave the ground?
What is 19.6 m/s
400
An object, initially at rest, moves 250 m in 17 s. What is its acceleration?
What is 1.73 m/s2
400
An object is dropped from a building and strikes the ground with a speed of 31m/s. How tall is the building?
What is 49 m
500
Calculate the time it takes and object travelling at 35 m/s to travel 140 m. Show your work!
What is 4s
500
How much time does it take an object initially travelling at 25 m /s to come to a complete stop with an acceleration of - 5 m / s^2
What is 5s
500

A ball is thrown up into the air, and after 2.1 seconds it reaches the ground.  How high did the person throw the ball?

5.41 meters is the peak height.

500
An object is at rest when it undergoes a constant acceleration of 13 m/s2 for 5.0 seconds. How far will it have traveled during this time?
What is 162.5 m
500
An object experiences an acceleration of -6.8 m/s2. As a result, it accelerates from 54 m/s to a complete stop. How much distance did it travel during that acceleration?
What is 214 m