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9) A flywheel initially rotating at 1200 rpm stops in 4.00 min when only friction acts....

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Physics

9) A flywheel initially rotating at 1200 rpm stops in 4.00 minwhen only friction acts. If an additional torque of 300 N-m isapplied, it stops in 1.00 min. (a) What is the rotational inertiaof the wheel? (b) What is the frictional torque?

Answer & Explanation Solved by verified expert
4.3 Ratings (625 Votes)
SolutionInitial angular velocity of the flywheelTime taken to stop the flywheel when friction acts Final angular velocity of the flywheel when it stops Apply to find    See Answer
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