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OpenStudy (anonymous):
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?
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OpenStudy (anonymous):
75*-9.81*4.6 = -3.38 X 10^3 J
OpenStudy (anonymous):
we know this because this work will be represented my mgh, :)
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