In Figure P11.47, two identical pucks B and C, each of inertia (m), are connected by a

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In Figure P11.47, two identical pucks B and C, each of inertia \(m\), are connected by a rod of length \(\ell\) and negligible inertia that is free to rotate about its center. Then puck A, of initial speed \(v_{\mathrm{i}}\) and inertia \(m / 2\), comes in and hits B. After the collision, in which no energy is dissipated, what are \((a)\) the rotational speed of the dumbbell and \((b)\) the velocity \(\vec{v}\) of A?

Data from Figure P11.47

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