Q. A body is tided with a string and is given a circular motion with velocity $v$ in radius $r$. The magnitude of the acceleration
A) $\frac{\upsilon}{r}$
B) $\frac{\upsilon^{2}}{r}$
C) $\frac{\upsilon}{r^{2}}$
D) $\frac{\upsilon^{2}}{r^{2}}$
Explanation
(b) Centripetal acceleration $a_{c} = v^{2}/r$
It acts along the radius and directed towards the centre of the circular path
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.