a) determine the force exerted on the piano by the man.  b) determine the work exerted on the piano by the man. c) determine the work exerted on the piano by graviy.  d) determine the net work exerted on the piano.

Physics for Scientists and Engineers: Foundations and Connections
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Author:Katz, Debora M.
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Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 38PQ: Kinetic friction is proportional to the normal force (Eq. 5.9). Why should there be an intimate...
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a) determine the force exerted on the piano by the man. 

b) determine the work exerted on the piano by the man.

c) determine the work exerted on the piano by graviy. 

d) determine the net work exerted on the piano. 

A 390 kg piano slides 2.5 m down a 27 ° incline and is kept from
accelerating by a man who is pushing back on it parallel to the incline (see
the figure(Figure 1)). Ignore friction.
Figure
1 of 1
Transcribed Image Text:A 390 kg piano slides 2.5 m down a 27 ° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1)). Ignore friction. Figure 1 of 1
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