(b) A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of 50.0 kg is rotating at 850 rev/min. You press an axe against the rim with a normal force of 160 N (see below), and the grindstone comes to rest in 7.50 s. Find the coefficient of kinetic friction be- tween the axe and the grindstone. There is negligible friction in the bearings. m = 50.0 kg F = 160 N

Describe the role of torque in rotational mechanics.

A line shaft rotating at 200 rpm is connected to a grinding wheel by the pulley assembly shown. If the grinder shaft must turn at 1200 rpm, what size pulley should be attached to the line shaft? x pulley 200 rpm Grinding wheel 4" pulley in pulley should be attached to the line shaft. If the grinder shaft must turn at 1200 rpm, a

What is the numerical value for the IMA of the interlocking gears shown if the larger wheel (30 teeth) is turning the smaller wheel (24 teeth).