You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius, and is turning at 90.0 rpm, and you press a steel axe against it with a radial force of 20.0 N. Assuming the kinetic coefficient of friction between steel and stone isp.20, calculate the angular acceleration of the grindstone. rad/s?
You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius, and is turning at 90.0 rpm, and you press a steel axe against it with a radial force of 20.0 N. Assuming the kinetic coefficient of friction between steel and stone isp.20, calculate the angular acceleration of the grindstone. rad/s?
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Transcribed Image Text:You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius, and is turning at 90.0 rpm, and
you press a steel axe against it with a radial force of 20.0 N. Assuming the kinetic coefficient of
friction between steel and stone isp.20, calculate the angular acceleration of the grindstone.
rad/s?
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