A man pushes an 80-N crate a distance of 5.0 m upward along a frictionless slope that makes an angle of 300 with the horizontal. The force he exerts is parallel to the slope. If the speed of the crate is constant, then the work done by the man is: O a. 140 J O b. 61 J O c. 260 J O d.-200 J O e. 200 J

A man pushes an 80-N crate a distance of 5.0 m upward along a frictionless slope that makes an angle of 300 with the horizontal. The force he exerts is parallel to the slope. If the speed of the crate is constant, then the work done by the man is: O a. 140 J O b. 61 J O c. 260 J O d.-200 J O e. 200 J

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 7PE: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N...

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A particle is subject to a force Fx that varies with position as shown in Figure P7.9. Find the work done by the force on the particle as it moves (a) from x = 0 to x = 5.00 m, (b) from x = 5.00 m to x = 10.0 m, and (c) from x = 10.0 m to x = 15.0 m. (d) What is the total work done by the force over the distance x = 0 to x = 15.0 m?
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