Abody of mass 2 kilograms moves on a circle of radius 6 meters, making one revolution every 8 seconds. find the centripetal force acting on the body.

The length of one revolution is equal to the perimeter of the orbit. Since the radius is r=6 m, the perimeter is

The object completes one revolution every 8 seconds, so its frequency of revolution is

and the angular frequency is


So now we can find the centripetal force acting on the body, which is equal to