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Physics-

General

Easy

Question

A uniform bar of length 6a and mass 8m lies on a smooth horizontal table. Two point masses m and 2m moving in the same horizontal plane with speeds 2v and v, respectively, strike the bar and stick to the bar after collision. Then the angular velocity of the bar (about the centre of mass) is –

zero
2v / 3a
v / 5a
3v / 5a

The correct answer is: v / 5a

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