Answer:
The angular speed of rolling ball is 3.23 rad/sec.
Step-by-step explanation:
Given that,
Radius = 1.95 cm
Speed = 6.30 cm/s
Suppose, we need to find the angular speed of rolling ball
We need to calculate the angular velocity
Using formula of angular velocity

Where, r = radius
= angular velocity
Put the value into the formula



Hence, The angular speed of rolling ball is 3.23 rad/sec.