Question: A 2 . 0 kg disk with 1 5 cm radius is spinning at 3 0 0 rpm . How long does it take to

A 2.0 kg disk with 15 cm radius is spinning at 300 rpm . How long does it take to come to stop if a friction force of 0.9 N applies to the rim of the disk?
A 2 . 0 kg disk with 1 5 cm radius is spinning at

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