Question

Select One Correct Option from the following:A uniform bar of length 6a and mass 8mlies on a smooth horizontal table. Two pointmasses m and 2m moving in the same horizontalplane with speed 2v and v respectively, strikethe bar (see figure) and stick to the bar aftercollision. Denoting angular velocity (about thecentre of mass), total energy and centre of massvelocity by $\omega$ E and $\upsilon_{C}$ respectively, we after collision,
(A) $\upsilon_{C} =0$(B) $\omega=\frac{3\upsilon}{5\alpha }$(C) $\omega=\frac{\upsilon}{5\alpha }$(D) $E=\frac{3}{5}m \upsilon^{2}$.

Answer 1

d is correct.
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