Q. If $\mu_{s},\ \mu_{k}$ and $\mu_{r}$ are coefficients of static friction, sliding friction and rolling friction, then
A) $\mu_{s} < \mu_{k} < \mu_{r}$
B) $\mu_{k} < \mu_{r} < \mu_{s}$
C) $\mu_{r} < \mu_{k} < \mu_{s}$
D) $\mu_{r} < \mu_{k} < \mu_{s}$
Explanation
The correct answer is Option C: $\mu_{r} < \mu_{k} < \mu_{s}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.