Answer:
F = 9 N
Step-by-step explanation:
We have,
Mass of a ball is 2 kg
The radius of the circle the ball travels around is 2 m
Let the velocity of the ball is 3 m/s
It is required to find the centripetal force on the ball. The force that is required to move an object in circular path is called centripetal force.

So, the centripetal force on the ball is 9 N.