9 1. A car starts at rest, and ends up with 1500 J of KE. How much Work was done on it?2. A motorcycle at rest has 550 J of Work done on it. What is its final KE?3. A runner has 250 J of KE. A short time later, he has 350 J of KE. How much Work wasdone on him?4. A runner has 250 J of KE. A short time later, he has 150 J of KE. How much Work wasdone on him?5. A 0.150 kg baseball is moving 30.0 m/s. How much KE does it have?6. A 0.150 kg baseball is moving 20.0 m/s. A bat hits it, doing 15.0 J of Work on it. What isthe final KE of the ball?7. A block is at rest. A 40.0N force directed 38.0° above horizontal pulls the block 8.00 macross flat ground. How much Work was done on the block? What is its final KE?8. A block is moving with 52.0 J of KE. A 12.0 N force pulls the block straight forward for 3.00m. How much Work was done on the block? What is its final KE?9. A block is moving with 52.0 J of KE. A 12.0N force pulls the block straight back, against themotion, for 3.00 m. How much Work was done on the block? What is its final KE?10. A 5.00 kg block is moving 6.00 m/s. A short time later, it is moving at 8.00 m/s. Whatwas the starting KE? What was the final KE? How much Work was done on theblock?

Given data: Initial Kinetic Energy (KEi) = 52.0 J Force (F) = 12.0 N, straight backward Displacement…

Answered: A block is moving with 52.0 J of KE. A…

A block is moving with 52.0 J of KE. A 12.0 N force pulls the block straight back, against the motion, for 3.00 m. How much Work was done on the block? What is its final KE?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 64PE: Integrated Concepts (a) What force must be supplied by an elevator cable to produce an acceleration...

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Question

1. A car starts at rest, and ends up with 1500 J of KE. How much Work was done on it?
2. A motorcycle at rest has 550 J of Work done on it. What is its final KE?
3. A runner has 250 J of KE. A short time later, he has 350 J of KE. How much Work was
done on him?
4. A runner has 250 J of KE. A short time later, he has 150 J of KE. How much Work was
done on him?
5. A 0.150 kg baseball is moving 30.0 m/s. How much KE does it have?
6. A 0.150 kg baseball is moving 20.0 m/s. A bat hits it, doing 15.0 J of Work on it. What is
the final KE of the ball?
7. A block is at rest. A 40.0N force directed 38.0° above horizontal pulls the block 8.00 m
across flat ground. How much Work was done on the block? What is its final KE?
8. A block is moving with 52.0 J of KE. A 12.0 N force pulls the block straight forward for 3.00
m. How much Work was done on the block? What is its final KE?
9. A block is moving with 52.0 J of KE. A 12.0N force pulls the block straight back, against the
motion, for 3.00 m. How much Work was done on the block? What is its final KE?
10. A 5.00 kg block is moving 6.00 m/s. A short time later, it is moving at 8.00 m/s. What
was the starting KE? What was the final KE? How much Work was done on the
block?

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