Unless otherwise stated, in the following problems we assume that the gravitational...

Unless otherwise stated, in the following problems we assume that the gravitational force is constant with g = 9.81 m/sec² in the MKS system and g = 32 ft/sec² in the U.S. Customary System.

A rotating flywheel is being turned by a motor that exerts a constant torque T (see Figure 3.10 on page 116). A retarding torque due to friction is proportional to the angular velocity .If the moment of inertia of the flywheel is and its initial angular velocity is

as a function of time. [Hint: Use Newton’s second law for rotational motion, that is, moment of inertia X

angular acceleration = sum of the torques.]