A 60-ft rope passes over a pulley 10 ft above the ground, and a crate on the ground is attached at one end. The other end of the rope is held at a level of 4 ft above the ground and is drawn away from the pulley. Express the height of the crate over the ground in terms of the distance the person is from directly below the crate. Sketch the graph of distance and height. See Fig. 21.126. (Neglect the thickness of the crate.)

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Fig. 21.126 10 ft h Length of rope = 60 ft - X 4 ft 1