skibum1441
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A 67.9 kg carpenter at a construction site plans to swing in a circular arc from one roof top to an adjacent roof at the end of a 13.9 meter rope suspended from a crane boom. If her wiry arms, toughened by years of driving spikes with a No. 22 framing hammer, are capable of exerting 1246 N of force on the rope, what is the maximum speed that she can tolerate at the low point of her swing