College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:A factory worker pushes a 30.0 kg crate a distance
of 5.5 m along a level floor at constant velocity by
pushing downward at an angle of 30° below the
horizontal. The coefficient of kinetic friction between
the crate and floor is 0.25.
What magnitude of force must the worker apply to move the crate at constant velocity?
Express your answer in newtons.
F =
Submit
Part B
ΑΣΦ
W =
Request Answer
?
How much work is done on the crate by this force when the crate is pushed a distance of 5.5 m?
Express your answer in joules.
V— ΑΣΦ
N
?
J
Transcribed Image Text:A factory worker pushes a 30.0 kg crate a distance
of 5.5 m along a level floor at constant velocity by
pushing downward at an angle of 30° below the
horizontal. The coefficient of kinetic friction between
the crate and floor is 0.25.
How much work is done on the crate by friction during this displacement?
Express your answer in joules.
Wf =
Submit
Part D
Wnf =
ΑΣΦ
How much work is done by the normal force?
Express your answer in joules.
Submit
Request Answer
ΑΣΦ
Request Answer
www.
?
J
J
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