To lift a heavy crate, a man uses a block and tackle
Chapter 3, Problem 3.151(choose chapter or problem)
To lift a heavy crate, a man uses a block and tackle attached to the bottom of an I-beam at hook B. Knowing that the moments about the y and the z axes of the force exerted at B by portion AB of the rope are, respectively, \(120\mathrm{\ N}\cdot\mathrm{m}\) and \(-460\mathrm{\ N}\cdot\mathrm{m}\), determine the distance a.
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