A factory worker pushes a 30.0 kg crate a distance of 4.5 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. You do not have to show your work
A factory worker pushes a 30.0 kg crate a distance of 4.5 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. You do not have to show your work
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A factory worker pushes a 30.0 kg crate a distance of 4.5 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.
You do not have to show your work
Transcribed Image Text:Part A
What magnitude of force must the worker apply to move the crate at constant velocity?
Express your answer in newtons.
?
F =
N
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Part B
How much work is done on the crate by this force when the crate is pushed a distance of 4.5 m?
Express your answer in joules.
?
W =
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Part C
How much work is done on the crate by friction during this displacement?
Express your answer in joules.
?
W; =
J
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Transcribed Image Text:Part D
How much work is done by the normal force?
Express your answer in joules.
ΑΣφ.
?
Wnf =
J
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Part E
How much work is done by gravity?
Express your answer in joules.
?
Wg =
J
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Part F
What is the total work done on the crate?
Express your answer in joules.
ΑΣφ.
?
Wnet =
J
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