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A potter's wheel, with rotational inertia 24 kg*m^2 is spinning freely at 40 rpm The potter drops a lump of clay onto the wheel, where

A potter's wheel, with rotational inertia 24 kg*m^2 is spinning freely at 40 rpm The potter drops a lump of clay onto the wheel, where it sticks a distance 1.2 m from the rotational axis. If the subsequent angular speed of the wheel and clay is 32 rpm what is the mass of the clay?

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