Question

A circular disc is rotating about its own axis
at the rate of 200 revolutions per minute.
Two particles P,Q of disc are at distances
5cm, 10cm from axis of rotation. The ratio
of angular velocities about P and Q is
1) 1:2 2) 1:1 3)2:1 4) 4:1
.​

Answer 1

Answer:

2) 1:1

Explanation:

Angular frequency = f = 200rpm

Angular speed = ω = 2πf = 400π rad/min

During circular motion particles of the system revolves with angular velocity , but they have different tangential velocity

angular velocity of P = angular velocity of Q

ω of P/ω of Q = (400πrad/min)/(400πrad/min) = 1:1

HOPE IT IS HELPFUL....

Answer 2

Answer:

2)1:1.................