2. A 450kg piano slides 3.5 m down a 25° incline and is kept from accelerating by a man who ispushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.42. Calculate: (a)the force exerted by the man, (b) the work done by the man on the piano, (c) the work done by thefriction force, (d) the work done by the force gravity and (e) the net work done on the piano.

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Description: 2. A 450kg piano slides 3.5 m down a 25° incline and is kept from accelerating by a man who ispushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.42. Calculate: (a)the force exerted by the man, (b) the work

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2. A 450kg piano slides 3.5 m down a 25° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.42. Calculate: (a) che force exerted by the man, (b) the work done by the man on the piano, (c) the work done by the iriction force, (d) the work done by the force gravity and (e) the net work done on the piano.

2. A 450kg piano slides 3.5 m down a 25° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.42. Calculate: (a) che force exerted by the man, (b) the work done by the man on the piano, (c) the work done by the iriction force, (d) the work done by the force gravity and (e) the net work done on the piano.

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 100CP: The surface of the preceding problem is modified so that the coefficient of kinetic friction is...

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