Question: 1 7 . 1 8 A slender 9 - lb rod can rotate in a vertical plane about a pivot at B . A spring

17.18 A slender 9-lb rod can rotate in a vertical plane about a pivot at B.
A spring of constant k=30lb//ft and of unstretched length 6 in . is
attached to the rod as shown. Knowing that the rod is released from
rest in the position shown, determine its angular velocity after it has
rotated through 90^(@). INCLUDE A 10lb*ft counterclockwise moment on AB
1 7 . 1 8 A slender 9 - lb rod can rotate in a

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