The disk has a mass of 50 kg, a radius of .6 m, and a radius of gyration relativ

Question

The disk has a mass of 50 kg, a radius of .6 m, and a radius of gyration relative to its mass center of .45 m. The uniform slender bar is 1.2 m long and has a mass of 18 kg. Its eft end is pinned to the disk. It is initially held in the horizontal position. Determine the angular accelerations of the disk and bar immediately from rest.

a(disk) = 2.25 rad/s^2

A(bar) = 10.5 rad/s^2

The disk has a mass of 50 kg, a radius of .6 m, and a radius of gyration relative to its mass center of .45 m. The uniform slender bar is 1.2 m long and has a mass of 18 kg. Its eft end is pinned to the disk. It is initially held in the horizontal position. Determine the angular accelerations of the disk and bar immediately from rest. a(disk) = 2.25 rad/s^2 A(bar) = 10.5 rad/s^2

Explanation / Answer

50*10.5*0.6 + 18*2.25*0.45 = 68*a

a = 4.9 m/s^2

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