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A ladder 20 ft. long leans against the wall of a house. The base of the ladder is pulled away.
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A ladder 20 ft. long leans against the wall of a house. The base of the ladder is pulled away at a rate of 3 feet per second. How fast is the top of the ladder moving down the wall when the base is 12 feet from the wall.
Answer 4 ft. per sec.
A ladder 20 ft. long leans against the wall of a house. The base of the ladder is pulled away at a rate of 3 feet per second. How fast is the top of the ladder moving down the wall when the base is 12 feet from the wall.
Answer 4 ft. per sec.
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