The lengths of the two links in the industrial robot are AB = 22in and BC = 18in,
shown in Figure 1. The angle between the two links is held constant at 40degree as the
robot's arm rotates about base A at 300degree/s. Calculate the velocity of the center C of
the robot's gripper.
(a) Now assume that the robot arm stops rotating about base A and begins to rotate
about B. The link BC rotates 90degree in 0.2 s, calculate the velocity of point C.
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