Question No. 2 At the instant shown, the 50-lb bar rotates clockwise at 2 rad/s. The spring attached to its end always remains vertical due to the roller guide at C. If the spring has an unstretched length of 2 ft and a stiffness of k = 6 lb/ft, determine the angular velocity of the bar the instant it has rotated 30° clockwise.
Question No. 2 At the instant shown, the 50-lb bar rotates clockwise at 2 rad/s. The spring attached to its end always remains vertical due to the roller guide at C. If the spring has an unstretched length of 2 ft and a stiffness of k = 6 lb/ft, determine the angular velocity of the bar the instant it has rotated 30° clockwise.
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Transcribed Image Text:Question No. 2
At the instant shown, the 50-lb bar rotates clockwise at
2 rad/s. The spring attached to its end always remains
vertical due to the roller guide at C. If the spring has an
unstretched length of 2 ft and a stiffness of k = 6 lb/ft,
determine the angular velocity of the bar the instant it has
rotated 30° clockwise.
k
4 ft
A
В
2 rad/s
6 ft
B.
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