The combination of an applied force and a friction force produces a constant total torque of 35.5 N · m on a wheel rotating about a fixed axis. The applied force acts for 5.80 s. During this time, the angular speed of the wheel increases from 0 to 10.4 rad/s. The applied force is then removed, and the wheel comes to rest in 60.4 s. (a) Find the moment of inertia of the wheel. kg · m2 (b) Find the magnitude of the torque due to friction. N · m (c) Find the total number of revolutions of the wheel during the entire interval of 66.2 s.

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal. find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.