R2-39. The scaffold S is raised by moving the roller at A
Chapter 21, Problem R2-39(choose chapter or problem)
The scaffold S is raised by moving the roller at A toward the pin at B. If A is approaching B with a speed of 1.5 ft/s. determine the speed at which the platform rises as a function of \(\theta\). The 4-ft links are pin connected at their midpoint.
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