At the instant shown, the 50-lb bar rotates clockwise at 2

Chapter 18, Problem R18-6

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QUESTION:

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 \(30^{\circ}\) clockwise.

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QUESTION:

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 \(30^{\circ}\) clockwise.

ANSWER:

Problem R18-6

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.

                                                          Step by Step Solution

Step 1 of 5

It is convenient to draw a representation of the system in its initial and final states as below.

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