You have a grindstone (a disk) that is 92.0 kg, has a 0.460-m radius, and is turning at 67.0 rpm, and you press a steel axe against it with a radial force of 11.0 N.(a) Assuming the kinetic coefficient of friction between steel and stone is 0.50, calculate the angular acceleration (in rad/s²) of the grindstone. (Indicate the direction with the sign of youranswer.)X rad/s²(b) How many turns (in rev) will the stone make before coming to rest?rev

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