A uniform disk with a mass of 10 kg and radius of 20 cm is, Ask an Expert

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A uniform disk with a mass of 1.0 kg and radius of 20 cm is rotating on frictionless bearings with a rotational speed of 10 rad/s when a clod of clay is dropped on a point 10 cm from the center of the disk, where it sticks. If the new angular velocity of the disk is 8.7 rad/s, what is the mass of the clay? Idisk= ½MR2.

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