Posted by **Andrea** on Wednesday, August 31, 2011 at 11:18am.

Shadow Length A man 6 feet tall walks at a rate of 3 ft per second away from a light that is 16 ft above the ground (see figure). When he is 11 ft from the base of the light find the following.

(a) The rate the tip of the shadow is moving.

(b) The rate the length of his shadow is changing.

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