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RIGID BODY ENERGY METHODS
In the system below, the disk has a mass of 2 slugs and the block B has a mass of 0.8 slugs.
The system starts from rest at 8 = 0 degrees. A moment, M, is then applied to the disk and moves the
whole system to 8 = 90 degrees. At 0 = 90 degrees, the angular velocity of the disk is 2 rad/s. What is
the magnitude of the moment M?
M
3 ft
w, a
C
5 ft
B

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