SUBMIT ANSWER 2. [-/4 Points] DETAILS MY NOTES OSCOLPHYS2 10.1.P.003. ASK YOUR TEACHER You have a grindstone (a disk) that is 94.0 kg, has a 0.310-m radius, and is turning at 63.0 rom, and you press a steel axe against it with a radial force of 10.0 N. (a) Assuming the kinetic coefficient of friction between steel and stone is 0.30, calculate the angular acceleration (in rad/s") of the grindstone. (Indicate the direction with the sign of your answer.) rad/s2 (b) How many turns (in rev) will the stone make before coming to rest? rev Additional Materials Book