Disk A, with a mass of 2.0 kg and a radius of 50 cm, rotates clockwise...

 

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Disk A, with a mass of 2.0 kg and a radius of 50 cm, rotates clockwise about a frictionless vertical axle at 40 rev/s. Disk B, also 2.0 kg but with a radius of 20 cm, rotates counterclockwise about that same axle, but at a greater height than disk A, at 40 rev/s. Disk B slides down the axle until it lands on top of disk A, after which they rotate together. Part A After the collision, what is magnitude of their common angular velocity (in rev/s)? Express your answer in revolutions per second. ? W = Submit Request Answer Part B In which direction do disks rotate after the collision? clockwise counterclockwise Submit Request Answer Provide Feedback rev/s Next Disk A, with a mass of 2.0 kg and a radius of 50 cm, rotates clockwise about a frictionless vertical axle at 40 rev/s. Disk B, also 2.0 kg but with a radius of 20 cm, rotates counterclockwise about that same axle, but at a greater height than disk A, at 40 rev/s. Disk B slides down the axle until it lands on top of disk A, after which they rotate together. Part A After the collision, what is magnitude of their common angular velocity (in rev/s)? Express your answer in revolutions per second. ? W = Submit Request Answer Part B In which direction do disks rotate after the collision? clockwise counterclockwise Submit Request Answer Provide Feedback rev/s Next