Question

A wooden box of mass 10 kg is carried in a lift from the ground floor to the tenth floor. if the height of each floor is 3 m, what is the work done on the box? (Take acceleration due to gravity, g = 10 m / 2s).

Answer 1

work done = mgh

where

mass(m) =10kg

acceleration due to gravity (g) =10m/s^2

height=3×10=30m

work done=10×10×30

=3000J