問題詳情

6. The disk A with moment of inertia I1 rotates with angular speed ω1 about a vertical frictionless axle. A second disk B with momentof inertia I2 rotates with angular speed ω2 drops on the disk A. Since two disks are rough and two disks eventually reach the sameangler speed ω, what is the final angular speed ω?
(A) (I1ω1+ I2ω2)/I1
(B) (I1ω1)/(I1+ I2)
(C) (I1ω1+ I2ω2)/( I1+ I2)
(D) (I2ω2)/( I1+ I2)
(E) (I1ω1− I2ω2)/( I1+ I2)

參考答案

無參考答案

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