You have a horizontal grindstone (a disk) that is 88 kg, has a 0.35 m radius, is turning at 94 rpm (in the positive direction), and you press a steel axe against the edge with a force of 22 N in the radial direction. f F 50% Part (a) Assuming that the kinetic coefficient of friction between steel and stone is 0.20, calculate the angular acceleration of the grindstone in rad/s => sin( cotan atan) cos() tan() asin() acos acotan() sinh cosh() tanh() cotanh() () 7 8 9 HOME EM4 5 6 1 23 0 END Degrees Radians VO BACKSPACE IN CLEAR Submit Hint Feedback I give up! Hints: 1% deduction per hint. Hints remaining: 3 Feedback: 2% deduction per feedback. 50% Part (b) What is the number of turns, N, that the stone will make before coming to rest?