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Normie Neutron swings a rubber ball attached to a string over his head in a horizontal, circular path. The piece of string is 1.5 m long and the ball makes 120 complete turns each minute.

a) What is the average velocity of balls?

b) What is the ball’s centripetal acceleration?

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pstnonsonjoku

The centripetal acceleration of the Normie Neutron is 12.6 ms-2.

What is circular motion?

The term circular motion is the movement of an object along a circular path. The radius is the distance between the object and the center of motion.

Velocity of the ball is obtained from;

2π rad/s = 60 rev/min

x rad/s = 120 rev/min

x = 2π rad/s × 120 rev/min/60 rev/min

x = 4π rad/s

v = rω

v = 1.5 m × 4π rad/s

v = 18.9 m/s

centripetal acceleration = v^2/r = (18.9 m/s)^2/1.5 = 12.6 ms-2

Learn more about centripetal acceleration: https://brainly.com/question/17689540

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