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Applying NLM along 3 Axis

A rod hinged ...

Question

A rod hinged at one end is made to rotate freely in influence of gravity with initial position being horizontal(angular velocity =0) has

A

acceleration of free end making some acute angle with rod .

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B

acceleration of free end making some no angle with rod

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C

some finite velocity of one end

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D

none of these

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Solution

The correct option is A acceleration of free end making some acute angle with rod .
Thus the rod end point acceleration makes actual angle with horizontal rod.

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