Question

A solid sphere of mass m is placed on rough inclined plane as shown in figure. Friction is sufficient to allow pure rolling. Work done by friction, when sphere traverse a distance l along the incline, is


of

• A. $-\mu mglcos\theta$
• B. $-\frac{3}{5}\mu mglcos\theta$
• C. $-\frac{2}{7}\mu mglcos\theta$
• D. Zero

Answer 1

The correct option is D Zero

Friction force is static in nature.