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Rotational Inertia of a turntable

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A turntable has rotational inertia 0.021 kg-m^2 and is rotating at 0.29 rad/s about a friction-less vertical axis. A wad of clay is tossed onto the turntable and sticks 15cm from the rotation axis. The clay hits with horizontal velocity component 1.3 m/s, at right angles to the turntable's radius, and in a direction that opposes the rotation. After the clay lands, the turntable has slowed to 0.085 rad/s. Find the mass of the clay.

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Solution Summary

A step-by-step solution is provided to find the mass of the clay on a turntable.

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Fundamental Principle: Conservation of angular momentum

Angular momentum of the turntable + clay = Angular momentum of the turn table before clay hits it + Angular momentum of the ...

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