A 33.0 kg child is riding a playground merry-go-round. If the child is 2.50 m from the center of the merry-go-round and has a constant tangential speed of 4.00 m/s. What is the magnitude of the centripetal force that is necessary to keep her on the merry-go-round at this radius?

Explanation:

Given:

mass of the child, radial distance of the child, tangential speed of the child,

Now from the given data we find the centrifugal force acting on the child mass:

So for the child to be in state of equilibrium with respect to the merry-go-round an equal amount of centripetal force must be acting on the child to keep it stationary with respect to the merry-go-round.Do note that a centrifugal force always acts away from the center of rotation and a centrifugal force always acts towards the center of rotation.

Ireally don’t know

Isso9