Solve Energy Needed to Raise 2000kg Lift to 10m

[kabton14]

Homework Statement

A engine used to raise a lift is 60% efficient, and the lift's mass is 2000kg. How much energy would be needed to raise it to 10m?

Homework Equations

Efficiency = energy output/ energy input *100

The Attempt at a Solution

E_P=mgh = 2000*9.8*10= 196000 J.

Therefore, eff. = energy output/energy input *100 = (0.6=E_OUT/196000

E_OUT= 0.6*196000=117600 J

Am I on the right track?

 

[rl.bhat]

Hi kabton14, welcome to PF.
Here Eout = mgh.