A 10 cm radius grind stone spins at a constant 400


A 10 cm radius grind stone spins at a constant 400 rotations per second. After turning off the motor, the grind stone takes 26 seconds to come to a stop.

What is the angular acceleration of the grind stone after the motor is turned off?

How many rotations does the grind stone make after the motor is turned off?

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Physics: A 10 cm radius grind stone spins at a constant 400
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