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A disc of radius R and mass m is mounted...

A disc of radius R and mass m is mounted on a vertical axis through its centre and perendicular to its plane. A rat of same mass m runs around the rim of the disc with speed v anticlockwise relative to stationary observer. The disc rotates clockwise with angular speed `omega. The rat finds a piece of bread on the rim and stops. Find the angular velocity of the disc after the rat stops.

Text Solution

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The correct Answer is:
`(omega R - 2 v) //3R`
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