Answer:
The angular speed of the ball in radians per second is 5.55 rad/s.
Step-by-step explanation:
Given;
mass of the ball, m = 1.8 kg
number of the ball's rotation per minute, n = 53 RPM
The angular speed of the ball in radians per second is calculated as follows;

Therefore, the angular speed of the ball in radians per second is 5.55 rad/s.