The angular speed of the seconds needle in a mechanical watch is:

Two particles having mass $M$ and $m$ are moving in a circular path with radius $R$ and $r$ respectively. The time period for both the particles is same. The ratio of angular velocity of the first particle to the second particle will be

$A$ particle is moving on a circular path of radius $r$ with uniform speed $v$. The magnitude of change in velocity when the particle moves from $P$ to $Q$ is $(\angle POQ = 40^o)$.

Write the equations for centripetal acceleration and centripetal force for uniform circular motion.

For a particle moving in a circular path with constant speed,which component of its linear acceleration is constant and which component is not constant?

$A$ particle completes $2$ revolutions in a circular path of radius $3$ cm. The angular displacement of the particle will be (in radian) (in $\pi$)