Question

A particle $P$ is a moving in a circle of radius $r$ with a uniform speed $v.C$ is the centre of the circle, and $AB$ is a diameter, If $P$ is at $B$, the angular velocities of $P$ about $A$ and $C$ are in the ratio

• A. $1:1$
• B. $2:1$
• C. $1:2$
• D. $4:1$

Answer 1

The correct option is C $1:2$

Angular velocity about centre of circle = 2 times about any point on circumference

$W_C=2W_A,\frac{W_A}{W_A}=\frac{1}{2}$