The man pulls the boy up the tree limb c by walking, Ask an Expert

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The man pulls the boy up the tree limb C by walking backward at a constant speed of 1.5 m/s. Determine the speed at which the boy is being lifted at the instant xA= 4m. Neglect the size of the limb. When xA= 0 and yB = 8m, so that A and B are coincident, ie., the rope is 16 m long.

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