Question

A 75.0 kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to the floor above, a vertical height of 4.60m. What is the work done on the man done by gravitational force?

Answer 1

the work done on the man done by the gravitational force would be :
75*9.81*4.6

= - 3.38 x 10 ^3 J

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