Question

A particle of mass moves with constant speed v on a circular path of radius r. Find magnitude of average force on it in evolution.

Answer 1

The force acting on the particle are centripetal force, normal force and the force of gravity. Normal force and the force of gravity cancel each other and the only unbalanced g=force is centripetal force which is equal to :

$F_c=\frac{m{v}^2}{r}$

where $v$ is speed

$r$ is radius