A ball of mass M moves in a circular path on a horizontal, frictionless surface. It is attached to a light string that passes through a hole in the center of the table. If the string is pulled down, thereby reducing the radius of the path of the ball, the speed of the ball is observed to increase. Complete the following sentence: This occurs because?

Question

joemc · Answer

Possibly conservation of angular momentum (L):
L = mvr

naveenbabbar · Answer

joemc is right and for detailed solution to your problem look the attachmeny