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A homogeneous rod AB of length L and mass M is hinged at the centre O in such a way that it can rotate freely in the vertical plane. The rod is initially in horizontal position. An insect S of the same mass M falls vertically with speed V on point C, midway between the points O and B. Immediately after falling, the insect starts to move towards B such that the rod rotates with a constant angular velocity 
.
If insect reaches the end B when the rod has turned through an angle of calculate V in terms of L
The correct answer is:
A angular momentum of system of rod and insect, just after collision = initial angular momentum of insect about
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