Problem 8.25 A wheel that is initially at rest has forces...

Problem 8.25 A wheel that is initially at rest has forces applied to it, as shown in (Figure 1), and it begins to rotationally accelerate. Part A Calculate the net torque about the axle of the wheel shown in (Figure 1). Assume that a friction torque of 0.50 m · N opposes the motion. Express your answer using two significant figures. ?net = m · N

c. 2 seconds after the wheel begins to slow, what is the magnitude of tangential acceleration of a point 0.05 m from the rotation axis? (1 pt) |a_tangential| = ________ m/s^2 Part 3: The wheel in this problem is a hoop of mass M = 2 kg and radius R = 0.3 meters. Recall that the moment of inertial of a hoop about its center of mass is I = MR^2. a. When the wheel is slowing down the way described in Part 2, find the magnitude of the net torque on the wheel. (1 pt) ̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄ Nm b. This torque is caused by a force applied as shown in the image below. The magnitude of the force is F = 1 N. Find the angle θ (in degrees). (1 pt) θ = ̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄ degrees c. When t = 2 sec, find the kinetic energy of the wheel. (1 pt) K = ̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄̄ Joules

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