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AP Physics C: Mechanics
5.5 Rotational Equilibrium and Newton’s First Law in Rotational Form
5.3 Torque
AdvancedMCQMathematical17.3k
A uniform boom pinned to a vertical wall and supported by a horizontal cable.
A uniform boom pinned to a vertical wall and supported by a horizontal cable.
A crane boom of length \(L = 8.0\text{ m}\) and uniform mass \(M = 240\text{ kg}\) is attached to a vertical wall by a frictionless pin joint at its base. The boom is held at an angle of \(30^\circ\) above the horizontal by a horizontal steel cable connected to the boom at a distance \(d = 6.0\text{ m}\) from the pin joint. The cable has a maximum allowable tension of \(1.20 \times 10^4\text{ N}\) before reaching its yield limit. Taking \(g = 9.8\text{ m/s}^2\), what is the maximum downward vertical force \(F\) that can be applied to the tip of the boom without exceeding the cable's tension limit?

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