Question: A certain pump weighs 50 lb and has a rotating unbalance. The unbalanced weight is 0.05 lb and has an eccentricity of 0.1 in. The

A certain pump weighs 50 lb and has a rotating unbalance. The unbalanced weight is 0.05 lb and has an eccentricity of 0.1 in. The pump rotates at 1000 rpm. Its vibration isolator has a stiffness of k = 500 lb/ft. Compute the force transmitted to the foundation if the isolator's damping ratio is
(a) ( = 0.05 and (b) ( = 0.7.

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