Problem 413 Crane by Method of Joints

Problem 413
Determine the force in each member of the crane shown in Fig. P-413.



Solution 413

Problem 343 | Equilibrium of Parallel Force System

Problem 343
The weight W of a traveling crane is 20 tons acting as shown in Fig. P-343. To prevent the crane from tipping to the right when carrying a load P of 20 tons, a counterweight Q is used. Determine the value and position of Q so that the crane will remain in equilibrium both when the maximum load P is applied and when the load P is removed.

Twenty tonner traveling crane


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