Question

A large disc has mass 2 kg and radius 0.2 m and initial angular velocity 50 rad/s and a small disc has mass 4 kg and radius 0.1 m and initial angular velocity 200 rad/s both rotating about their common axis. Then the common final angular velocity after discs are in contact is,

a) 100rad/s
b) 125rad/s
c) 200rad/s
d) 150rad/s ​

Answer 1

Answer:

a 100 rad/s

Explanation:

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