What was the mass of the second disk

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Disk 1 has a radius of 5 cm and mass of 1 kg it spins at an angular velocity of 2 rad/s a second disk is dropped on top of disk 1. Disk two has a radius of 2 cm, and a mass that is unknown. Now the final angular velocity of the entire system is 0.5 rad/s what was the mass of the second disk?

Reference no: EM13275505

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