Shadow Length A man 6 feet tall walks at a rate of 5 feetper second toward a streetlight that is 30 feet high (see figure).The man’s 3-foot-tall child follows at the same speed, but10 feet behind the man. At times, the shadow behind the childis caused by the man, and at other times, by the child.(a) Suppose the man is 90 feet from the streetlight. Show thatthe man’s shadow extends beyond the child’s shadow.

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