In the planetary gear system shown, gears A and B are rigidly connected to each other and rotate as a unit about shaft FG. Gears C and D rotate with constant angular velocities of 15 rad/s and 30 rad/s, respectively, both counterclockwise when viewed from the right, choosing the z axis pointing out of the plane of the figure, determine

(a) The common angular velocity of gears A and B,

(b) The common angular acceleration of gears A and B,

(c) The acceleration of the tooth of gear B that is in contact with gear D at point 2.

Transcribed Image Text:

9 in. "( [3 in