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wheel rotates with angular velocity 500 r.p.m. on a shaft. Second identical wheel axially at rest is suddenly coupled on same shaft. What is the total angular speed of the system? [Assume M.I. of shaft to be negligible]

A

124 r.p.m.

B

500 r.p.m.

C

250 r.p.m.

D

750 r.p.m.

Text Solution

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The correct Answer is:
C
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