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Rotational Inertia

Two equal mas...

Question

Two equal masses attached to a rod is made to experience equal force.Force on both rod is perpendicular to it but in one rod it acts on attached mass and in other rod it is acted on the mid point of rod. now choose the correct statement

A

Both rod has same motion

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B

they have different linear acceleration

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C

one of the rod shows no angular motion

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D

none of the above

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Solution

The correct option is C one of the rod shows no angular motion
In both cases , $a = \frac{F}{2 m}$
In case(1) there is $Z$ about COM but in (2) there is no $Z$ . Thus here will be rotation in Onlegeme case.

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