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A Man Pulls a 100-N Crate Up a Frictionless 30

Question 55

Multiple Choice

A man pulls a 100-N crate up a frictionless 30 ° slope 5 m high as shown. Assuming that the crate moves at constant speed, the work done by the man is: A man pulls a 100-N crate up a frictionless 30 ° slope 5 m high as shown. Assuming that the crate moves at constant speed, the work done by the man is: A) -500 J B) -250 J C) 0 D) 250 J E) 500 J


A) -500 J
B) -250 J
C) 0
D) 250 J
E) 500 J

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