Work done by a conservative force in bringing a body from infinity to is and to is

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power

Problem

Work done by a conservative force in bringing a body from infinity to

A

60\,\mathrm{J}

and to

B

20\,\mathrm{J}

. What is the difference in potential energy,

U_B-U_A