A wheel is mounted on a steel shaft (G = 83×10⁹ N/m²) of length (1.5 m) and radius (0.80 cm). The wheel is rotated (5°) and released. The period of oscillation is observed as (2.3 s). Determine the mass moment of inertia of the wheel.

A wheel is attached by a cable to a block  The wheel has a radius of 2ft and weighs 300lbs, the block weights 20lbs. If the radius of gyration about the point of rotation of the disk is 1.5ft, how many revolutions will it take for the wheel to come to a stop assuming it was moving at 10 rad/s CW. Assume the block is on the left side of the wheel and thus causes a CCW moment.

Wng Consider systems A and B shown in the figure. The ratio of natural frequency of system A(wn,) to natural frequency of system B(wng), i.e. 4 is: (for the disc, assume moment of inertia about its centre is Assume g = 9.81 m/s? juiny m m. g = 9.81 m/s? A a frictionless No slip V3 о ООО о

4. In order to determine the mass moment of inertia of a 4-foot diameter flywheel, the flywheel is tested\twice with different deadweight. In the first test a weight of 20 lb is attached by cord and observed to fall 10 ft in 4.6 seconds. In the second test a weight of 40 lb falls 10 ft in 3.1 seconds. Assuming that the torque due to bearing friction is constant, determine mass moment of inertia of the flywheel. Your solution must include W supporting FBDS.