Q. A particle $P$ is moving in a circle of radius $r$ with a uniform speed $v$. $C$ is the centre of the circle and $AB$ is the diameter. The angular velocity of $P$ about $A$ and $C$ is in ratio

A) 1 : 1
B) 1 : 2
C) 2 : 1
D) 4 : 1
Explanation

(b) Angular velocity about $A,\ \omega_{1} = v/2r$
[image:4_image109.emf]
Angular velocity about, $\ \omega_{1} = v/2r$
$\therefore\ \omega_{1}/\omega_{2} = (v/2r)/(v/r) = 1/2$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.