A factory worker pushes a 30-kg crate a distance of 4.5 m at a downward angle of 30° below the horizontal. The coefficient of kinetic friction between the crate and the floor is 0.25. 0 = 30° Fpush

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(a) If the crate moves at constant speed, what is the work done by the worker on the crate?

(b) What is the work done by kinetic friction?

(c) Find the total work done on the crate

A factory worker pushes a 30-kg crate a distance of 4.5 m at a
downward angle of 30° below the horizontal. The coefficient of kinetic friction between the crate
and the floor is 0.25.
0 = 30°
push
Transcribed Image Text:A factory worker pushes a 30-kg crate a distance of 4.5 m at a downward angle of 30° below the horizontal. The coefficient of kinetic friction between the crate and the floor is 0.25. 0 = 30° push
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