4 I. Relating work, force, and displacement A. The figure at right shows a hand pushing a block as it moves through a displacement AS. Direction of original force Aš 1. Suppose instead the force exerted by the hand were directed partially downward as shown. Both the displacement of the block and the magnitude of the force are the same as before. Direction of Would the work done by the new force be greater than, less than, or equal to the work done by the original force? Explain. new force 2. Suppose instead that the hand were to push with a force of the same magnitude as before but do zero work. The displacement of the block is the same as before. In the space at right, draw an arrow to show the direction of the force by the hand. Displacement Force on block of block by hand

4 I. Relating work, force, and displacement A. The figure at right shows a hand pushing a block as it moves through a displacement AS. Direction of original force Aš 1. Suppose instead the force exerted by the hand were directed partially downward as shown. Both the displacement of the block and the magnitude of the force are the same as before. Direction of Would the work done by the new force be greater than, less than, or equal to the work done by the original force? Explain. new force 2. Suppose instead that the hand were to push with a force of the same magnitude as before but do zero work. The displacement of the block is the same as before. In the space at right, draw an arrow to show the direction of the force by the hand. Displacement Force on block of block by hand

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 29P: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N...

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