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engineering mechanics planar kinematics of a rigid body
1. Determine the angular acceleration of link BC at the instant = 90° if the collar C has an instantaneous velocity of vc = 4 ft/s and deceleration of ac = 3 ft/s2 as shown.
(A): BC = 27.8 rad/s2
(B): BC = 36.2 rad/s2
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