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  3. a 240 g , 25-cm-diameter plastic disk is spun on a

A 240 g , 25-cm-diameter plastic disk is spun on an axle through its center by...

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Physics

A 240 g , 25-cm-diameter plastic disk is spun on an axle throughits center by an electric motor.

What torque must the motor supply to take the disk from 0 to1800 rpm in 4.8 s ?

Answer & Explanation Solved by verified expert
3.8 Ratings (733 Votes)
The moment of inertia of the disc about the center isI m r2 2Where m is the mass and r is the radius of    See Answer
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