. Calculate the work done by an elevator as it lifts 12 occupants up 21 floors (76.8 meters) at a constant speed. The average mass of the occupants is 62.8 kg. (show work)

W = 4832

Explanation:

Given:

Force = 62.8 Kg

Distance = 76.8 m

Find :

work done = ?

Formula :

W = Fd

Solution:

W = Fd

W =(62.8 kg)(76.8 m)

   = 4832 J

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

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