Question

when a body of mass M is lifted up through a height H what is the work done by the gravitational force?

Answer 1

Answer:

Explanation:

We take the ground level as reference line for potential energy.

So, potential energy at ground is 0.

Now,we know that work done=Force*Displacement

Here, force is due to gravity,which is mg.And displacement is H.

So, work done is mgH.

Hope you understood

Answer 2

Answer:

hey watch the above pic for ur answer of the question