Problem

The 50-lb square plate is pinned at corner A and attached to a spring having a stiffness...

The 50-lb square plate is pinned at corner A and attached to a spring having a stiffness of k = 20 lb/ft. If the plate is released from rest when θ = 0°, determine its angular velocity when θ = 90°. The spring is unstretehed when θ = 0°.

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Solutions For Problems in Chapter 18

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