Question

An elevator carrying 10 passengers through a height of 10 m from the ground has a mass of 2000 kg. Calculate the power required by the motor to lift the elevator if the time taken to lift the elevator to that height is 1 minute. 

Answer 1

Given:

$m=2000\;\rm kg$

$h=10\;\rm m$

$t=60\:\rm s$

The power of the motor

$$P=\frac{W}{t}=\frac{mgh}{t}=\frac{2000*9.8*10}{60}=3267\:\rm W$$