Lessons

Eamcet Physics
1 st Year : Unit 5.1( Motion of System of Particles And Rigid Body ) -Centre of Mass

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Q.

The M.I. of a uniform disc about an axis passing through its centre and perpendicular to its plane is 1 kg m2. It is rotating with an angular velocity of 100 rad s–1. A second disc of same mass and radius is joined to it coaxially. Now these two discs together continue to rotate about the same axis. Then the lose in kinetic energy in kilo joules is

View Answer

Correct choice: A

Explanation:

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