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Aladder of 5 m long rest with one end ag...

Aladder of 5 m long rest with one end against a vertical wall of height 3 m and the other end on the lower ground. If its top slides down at the rate of 10 cm/sec, find the rate at which the foot of the ladder is sliding.

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The correct Answer is:
`((3)/(40))` m/sec.
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