Determine whether the following statement is true or false and the reason your choice is correct. A cable hangs vertically from a building. The work required to pull half of the cable up is half as much as the work required to pull the entire cable. O False. It requires more than half of the work since the second half of the cable will be moved as we pull up the first half. O True. The force required is constant. O False. It requires less than half of the work as we only consider the weight of the first half of the cable.

Determine whether the following statement is true or false and the reason your choice is correct. A cable hangs vertically from a building. The work required to pull half of the cable up is half as much as the work required to pull the entire cable. O False. It requires more than half of the work since the second half of the cable will be moved as we pull up the first half. O True. The force required is constant. O False. It requires less than half of the work as we only consider the weight of the first half of the cable.

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Description: Determine whether the following statement is true or false and the reason your choice is correct.A cable hangs vertically from a building. The work required to pull half of the cable up is half as much as the work required to pull the entire cable.O

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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a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed, (a) Find the work done by the shopper as she moves down a 50.0-m length aisle, (b) What is the net work done on the cart? Why? (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesnt change, would the shoppers applied force be larger, smaller, or the same? What about the work done on the cart by the shopper?
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