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Q.

A rod AB of length l is moving in a plane and at an instant of time velocities of its ends A and B are 4V and V as shown in figure. Then angular velocity of the rod is

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a

3Vl

b

5Vl

c

4Vl

d

zero

answer is B.

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Detailed Solution

Velocity of A relative to B, VAB=4V+V=5V∴ ω=VA/Bl=5Vl
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