A uniform rod of mass \( M \) and length \( L \) is held \( \mathrm...

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A uniform rod of mass \( M \) and length \( L \) is held
\( \mathrm{P} \) vertically on a smooth horizontal surface. When the rod is released, choose the INCORRECT
W alternative:-
(1) The centre of mass of the rod accelerates in the vertical direction.
- (2) Initially, the magnitude of the normal reaction is \( \mathrm{Mg} \).
(3) When the rod becomes just horizontal, the magnitude of the normal reaction becomes \( \mathrm{Mg} / 2 \)
(4) When the rod becomes just horizontal, the magnitude of the normal reaction becomes \( \mathrm{Mg} / 4 \)
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