Question

When a conservative force does positive work on a body the pottential energy of the body?

Answer 1

The
potential
energy
of
a
body
decrease
&
vice
versa

Answer 2

Dear student,

When a conservative force does positive work on a body then the potential energy of the body decreases.

This could be understood through the relation between work done by conservative forces and change in momentum i.e.

               - Wc.f. = Δ u

or,              Wc.f. = - Δu

     where,  - Δu = (-ve)

                  - Δu = decreasing change in

                             potential energy.