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A stationary uniform rod in the upright ...


A stationary uniform rod in the upright position is allowed to fall on a smooth horizotal surface. The figure shows the instantaneous position of the rod. Identify the correct statement.

A

normal reaction N is equal to Mg

B

N does positive rotational work about the centre of mass

C

a couple of equal and opposite forces acts on the rod

D

all of the above.

Text Solution

Verified by Experts

`Mg` can't provide rotatainal motion. This is only `N` which actually provides the rotational motion.
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