Physics, 07.11.2021 14:00 jekson1252
Disk A, with a mass of 2.0 kg and a radius of 70 cm , rotates clockwise about a frictionless vertical axle at 20 rev/s . Disk B, also 2.0 kg but with a radius of 30 cm , rotates counterclockwise about that same axle, but at a greater height than disk A, at 20 rev/s . Disk B slides down the axle until it lands on top of disk A, after which they rotate together.
Required:
What is their common angular velocity in rev/s, and in which direction do they rotate?
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Disk A, with a mass of 2.0 kg and a radius of 70 cm , rotates clockwise about a frictionless vertica...
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