73. The percentage of total energy dissipated due to friction at the tool-chip interface
is:
(A) 30%
(B) 42%
(C) 58%
(D) 70%
Common Data for Questions 74, 75:
A planetary gear train has four gears and one carrier. Angular velocities of the gears are
ω ω ω ω respectively. The carrier rotates with angular velocity ω
5.
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