Q 11-05-209JEE MainJEE Main 2025 (7 Apr, Shift 2)Easy
Which one of the following forces cannot be expressed in terms of potential energy?
Answer: (C) Frictional force
A potential energy can be defined only for a conservative force, whose work does not depend on the path. Friction is non-conservative: the work it does depends on the path taken, so it has no potential energy.
Solution by Sreeraj P, M.Sc Physics