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A 39-meter ladder is sliding down a vertical wall so the distance between the bottom of the ladder and the wallis increasing at 10 meters

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A 39-meter ladder is sliding down a vertical wall so the distance between the bottom of the ladder and the wallis increasing at 10 meters per minute.At a certain instant, the bottom of the ladder is 36 meters from the wall.What is the rate of change of the distance between the top of the ladder and the ground at that instant (inmeters per minute)?

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