Name
Date
Kinematics
5 Kinematics Equations 2
Instructions: Do every problem using LEPA on a separate sheet of paper.
1. An observer recorded the data for the motion of a car undergoing constant acceleration.
Using the chart below, what is the magnitude of the acceleration of the car? 1.5 m/s2
Time (s) Speed (m/s)
3.0
4.0
5.0
7.0
6.0
8.5
2. A skier starting from rest skis straight down a slope 50 meters long in 5.0 seconds. What
is the magnitude of the acceleration of the skier? 4 m/s2
3. A car having initial velocity of 12 meters per second east slows uniformly to 2 meters per
second east in 4.0 seconds. What is the acceleration of the car in this 4.0 second interval?
2.5 m/s2 west
4. A race car starting from rest accelerates uniformly at a rate of 4.90 meters per second2.
How far does the car travel when it reaches a speed of 44.3 m/s? 200 m
5. An object has a constant acceleration of 2.0 meters per second2. What is the time
required for the object to accelerate from 8.0 meters per second to 28 meters per second?
10 s
6. An inclined plane is 10 meters long and is elevated 5 meters on
one end as shown. Starting from rest at the top of the incline, a
box weighing 100 Newtons accelerates down the incline at a
rate of 2.5 meters per second2. How many seconds will it take
the box to reach the bottom of the incline? 2.83 s
7. A skater increases her speed uniformly from 2.0 meters per second to 7.0 meters per
second over a distance of 12 meters. What is the magnitude of her acceleration as she
travels the 12 meters? 1.875 m/s2
8. A truck starts a trip from rest and accelerates to 25 meters per second. How far does it
travel in the 5 seconds it takes to accelerate? 62.5 m
9. A 10.-kilogram object, starting from rest, slides down a frictionless incline with a
constant acceleration of 2.0 m/sec2 for four seconds. During the 4.0 seconds, the object
moves what total distance? 16 m
10. A race car traveling at 10 meters per second accelerates at 1.5 meters per second2 while
traveling a distance of 600 meters. The final speed of the race car is what? 43.6 m/s