A man 5.5 ft. tall walks away from a lamp post 10 ft. high. At the rate of 8 ft/sec; How fast does his shadow lengthen? How fast does the tip of the shadow move?
Added by Donald G.
Step 1
From the given information, we have 10/ x + l = 5.5/ l, where x is the distance from the lamp post to the man, l is the length of the shadow, and 5.5 is the height of the man. Show more…
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