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A ladder 5cm long is leaning against a w...

A ladder 5cm long is leaning against a wall. The bottom of the ladder is pulled along the ground, away from the wall at the rate of 2cm/sec. How fast is its height on the wall decreasing when the foot of the ladder is 4m away from the wall?

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The correct Answer is:
Top end of ladder is decreasing at the rate of `8/3` cm/s.
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SUNSTAR PUBLICATION-P.U .BOARD LATEST MODEL QUESTION PAPER - 2 -PART-C
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