Q. A motorcyclist of mass $m$ is to negotiate a curve of radius $r$ with a speed $v$. The minimum value of the coefficient of friction so that this negotiation may take place safely, is
A) $v^{2}rg$
B) $\frac{v^{2}}{gr}$
C) $\frac{gr}{v^{2}}$
D) $\frac{g}{v^{2}r}$
Explanation
The correct answer is Option B: $\frac{v^{2}}{gr}$.
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.