In physics, we define centripetal force as a net force that makes an object follow a curved path. It is directed inward towards the center of rotation.

A Merry-go-round is a perfect example of how a force is used to keep an object moving in a circular path.

Centripetal force is measured in Newtons.

**Formula to calculate centripetal force.**

To calculate centripetal force, we multiply mass by the square of velocity and then divide the result by the length of the radius.

**Example:**

A student is standing at the edge of a merry-go-round holding onto the bars. The student has a mass of 50 Kg, the radius of the ride is 3.5 m and the merry-go-round’s velocity is 2 m/s. Calculate the centripetal force pulling the student towards the center of the merry-go-round..

Therefore, the centripetal force is 57.14 N.