PhysicsJEE Main 23 Jan 2026, Shift 1·Q17·MCQ·Easy–moderate

Rotational Motion · Rotational dynamics

Two small balls with masses m and 2m are attached to both ends of a rigid rod of length d and negligible mass. If angular momentum of this system is L about an axis (A) passing through its centre of mass and perpendicular to the rod then angular velocity of the system about A is:

(1) $\dfrac32\dfrac{L}{md^2}$
(2) $\dfrac{2L}{md^2}$
(3) $\dfrac43\dfrac{L}{md^2}$
(4) $\dfrac{2L}{5md^2}$

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Rotational Motion · Rotational dynamics

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