Calculus
posted by Billy the Goat
a 14 foot ladder is leaning against a building. If the bottom of the ladder is sliding along the pavement directly away from the building at 3 feet/second, how fast is the top of the ladder moving down when the foor of the ladder is 5 feet from the wall?
I got 1.083 when I ended by doing 15/sq rt 192

Reiny
same as your other question.
check your work, that should have been √171 instead of √192
25 + y^2 = 14^2
y^2 = 196  25
etc 
saif al najjar
the answer is 0.222132 if its 4 not 5
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