2. A drawbridge design is proposed where a single linear spring is attached to the middle of the drawbridge. The spring has an unstretched length of 20 ft and its elastic constant is $k = 40 \text{ lb/ft}$. The drawbridge is 32 ft long, has a mass of 27 slg, and has a mass moment of inertia about O of $\frac{mL^2}{3} \text{ slg-} ft^2$. Draw the State 1 and State 2 diagrams for the design and use them to determine the velocity with which the bridge will strike the ground if it is released from a nearly vertical position.
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mL slg-ft^3 T = 16ft^2 k = 16ft Show more…
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