Question

How much work does it take to raise a `16 kg` weight `21 m`?

Answer 1

`3292.8J`

Explanation:

if we take the ground level as the zeroth level of gravitational potential energy, then the potential energy that get stored in the object when you lift it `21m` is the work you should do.

`W= mgh`
where W represents the work you should do..

`W= 16kg* 9.8ms^"-2" *21m`

`W= 3292.8 J`