An epicyclic train of gears is arranged as shown in
Fig.13.11. How many revolutions does the arm, to which the pinions B and
C are attached, make :
1. when A makes one revolution clockwise and D makes half a
revolution anticlockwise, and
2. when A makes one revolution clockwise and D is stationary ?
The number of teeth on the gears A and D are 40 and 90