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Figure shows a horizontal rod AB which i...

Figure shows a horizontal rod AB which is free to rotate about two smooth bearing system. Two identical uniform rods each of mass m are attached to lod AB symmetrically about the centre ofmassO oftherodAB. All the dimensions are given in the figure-5.132. The system is rotating with constant angular velocity co insuch away that the upper rod is coming outward from the plane of the paper in the position shown. Gravity can be assumed to be absent in the experiment, then choose the correct option(s).

A

The hinge reaction at A on the rod AB is downward

B

The hinge reaction at B on the rod AB is upward

C

The hinge reaction at B on the rod AB is downard

D

The angular momentum of the system about point O is NOT along the rod AB.

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A, B, D
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