Question

A motor outputs power of 500 watts and is used to raise a 5kg mass vertically at
constant speed. How long in seconds does it take to raise the mass 15 meters?

Jul 9, 2014

PE=mgh
5*9.8*15= 735

Power= Energy/time so..

t=E/P
t=735/500
t=1.47

Jul 9, 2014

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