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  3. three rotating masses a = 7 kg, b = 12 kg, and c =

Three rotating masses A = 7 kg, B = 12 kg, and C = 11...

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Mechanical Engineering

Three rotating masses A = 7 kg, B = 12 kg, and C = 11 kg, areattached to a shaft with their centres of gravity at 25 mm, 55 mmand 35 mm respectively from the shaft axis. The angular positionsof B and C from A are respectively 90o and150o measured in the same direction. The distancebetween the planes of rotation of A and B is 1.75 m and between Band C is 2

m in the same direction.

Determine the magnitudes and angular positions with respect to Aof two balance masses, each with its centre of gravity at 35

mm from the shaft axis, to be attached in planes midway betweenA and B and between B and C.

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