Question

Calculate the Speed of a Body performing Uniform Circular Motion along a circle of radius r with a time period of $T$.

Answer 1

If a body is moving in a circular orbit of radius r and the body covers a distance equal to the circumference of that circle $d=2\pi r$……..(1)

This amount of distance is covered in time T.

So, the speed of a body in uniform circular motion is

$s=\frac{2\pi r}{T}$