Free response problems 1) (3 pts) A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 250 N applied to its edges causes the wheel to have an angular acceleration of 0.940 rad / s. i) What is the moment of inertia of the wheel ? ii) The wheel starts from rest. What is its angular speed when it has rotated through an angle of 0.5 rad ? 2) (3 pts) The engine in a small air-plane is specified to have a torque of 500 N x m. This engine drives a 2.0-m-long, 40 kg single-blade propeller. On start-up, how long does it take the propeller to reach 2000 rpm