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a man climbing a ladder which is inclined to the wall at an angle of 30 degree. if he ascend at the rate of 2m/s then he approach the wall at the rate of

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    since cot 30 = √3, the ratio of the horizontal distance x to the height h is

    x/h = √3

    so, if the height is increasing at 2 m/s, the man approaches the wall at 2√3 m/s

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