A rigid uniform rod of mass M and length ‘L’ is resting on a smooth horizontal table. Two marbles
each of mass ‘m’ and travelling with uniform speed ‘V’ collide with two ends of the rod
simultaneously and inelastically as shown. The marbles get struck to the rod after the collision
and continue to move with the rod. If
M
m
6
and V = L mts/sec, then the time taken by the rod to
rotate through 2
p
is
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Answer:
................................24.6......
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