A 320-kg piano slides 3.9 m down a 25 ° incline and iskept from accelerating by a man who is pushing back on itparallel to the incline. Part DDetermine the net work done on the piano. Ignorefriction.Express your answer using two significant figures.ΑΣφ?WJ

● Kept from accelerating means acceleration of piano is zero. It means change in velocity is zero.…

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Determine the net work done on the piano. Ignore friction.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 46P: Trying to escape his pursuers, a secret agent skis off a slope inclined at 30 below the horizontal...

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Question

A 320-kg piano slides 3.9 m down a 25 ° incline and is
kept from accelerating by a man who is pushing back on it
parallel to the incline.

Part D
Determine the net work done on the piano. Ignore
friction.
Express your answer using two significant figures.
ΑΣφ
?
W
J

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