Describe how friction sometimes causes an increase in kinetic energy?

Asked by Rinki Singh | 28th Dec, 2013, 02:56: PM

Expert Answer:

Friction opposes the relative motion between two bodies, hence it decreases the kinetic energy. But, in the view that friction supplies the force that accelerates the object, for example friction helps in walking; we can say that friction causes an increase in kinetic energy.

Answered by  | 30th Dec, 2013, 10:52: AM
