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QUESTION
if a 13 foot ladder is leaning against a vertical wall and the bottom is moved away from the building at 2 feet per second, how fast is the top of
if a 13 foot ladder is leaning against a vertical wall and the bottom is moved away from the building at 2 feet per second, how fast is the top of the ladder sliding along the wall at the time the bottom of the ladder is 5 feet from the building?
