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A man 6 feet tall walks at the rate of 5 ft/sec toward a street light the is 16 ft above the ground. a)

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A man 6 feet tall walks at the rate of 5 ft/sec toward a street light the is 16 ft above the ground. a) At what rate is the tip of his shadow moving? b) At what rate is the length of his shadow changing when he is 10 feet from the base of the light?

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