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The arm OA of a epicyclic gear train shown in figure revolves counter clockwise about Owith an angular velocity of 4 rad/s. Both gear are of same size. The angular velocity of gears C, if the sun gear B is fixed is
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- 4 rad/s
- 8 rad/s
- 10 rad/s
- 12 rad/s
Correct Option: B
Given: y = – 4 [CCW]
N + y = 0 [Sun gear B is fixed]
∴ N = – y
= 4 rad/sec
Speed of gear C = – 4 – 4 = – 8 rad/sec
