A Light-Weight Potter's Wheel,having a Moment of Inertia Of $24 \mathrm {~kg} \cdot \mathrm { m } ^ { 2 }$

question 64

Multiple Choice

A light-weight potter's wheel,having a moment of inertia of $24 \mathrm {~kg} \cdot \mathrm { m } ^ { 2 }$ is spinning freely at 40.0 rpm.The potter drops a small but dense 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?

• A)4.2 kg
• B)2.8 kg
• C)3.7 kg
• D)4.6 kg

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