16-89. The oil pumping unit consists of a walking beam AB.
Chapter 17, Problem 16-89(choose chapter or problem)
16-89. The oil pumping unit consists of a walking beam AB. connecting rod BC. and crank CD. If the crank rotates at a constant rate of 6 rad/s. determine the speed of the rod hanger H at the instant shown. Hint: Point B follows a circular path about point F. and therefore the velocity of B is not vertical.
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