A man 2 meters tall walks at a rate of 1.2 meters per second away from a light that is 5 meters above the ground (see figure) 4 5 6 7 (a) When he is 3 meters from the base of the light, at what rate is the tip of his shadow moving? ]m/sec (b) When he is 3 meters from the base of the light, at what rate is the length of his shadow changing? m/sec

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