A3kg crate is placed at the bottom of an inclined frictionless plane making an angle 30° above the horizontal and pushed up by a force F=40N parallel to the incline as shown below. If the incline is 6 m long, then the net work done on this crate when it reaches the top of the incline is equal to: F 0 270 J

Physics for Scientists and Engineers: Foundations and Connections
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Author:Katz, Debora M.
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Chapter9: Energy In Nonisolated Systems
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A3kg crate is placed at the
bottom of an inclined
frictionless plane making an
angle 30° above the
horizontal and pushed up by
a force F=40N parallel to the
incline as shown below. If the
incline is 6 m long, then the
net work done on this crate
when it reaches the top of
the incline is equal to:
0
270 J
150 J
180 J
120 J
210 J
Transcribed Image Text:A3kg crate is placed at the bottom of an inclined frictionless plane making an angle 30° above the horizontal and pushed up by a force F=40N parallel to the incline as shown below. If the incline is 6 m long, then the net work done on this crate when it reaches the top of the incline is equal to: 0 270 J 150 J 180 J 120 J 210 J
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