Question

Potential energy of a system increases if work is dobe

Answer 1

Conservative Force -

a) Upon the system by a non-conservative force

b) By the system against a conservative force 

c) By the system against a nonconservative force 

d) upon the system by a conservative force

F = -dU/dr

- wherein Negative of the rate of change of potential energy with respect to the position

if work is done upon the system by a conservative force

a)

Upon the system by a non-conservative force

This solution is incorrect

 b)

By the system against a conservative force

This solution is incorrect

c)

By the system against a non-conservative force

This solution is incorrect

d)

upon the system by a conservative force

This solution is correct.