JEE Math Practice Question
A 2 m ladder leans against a vertical wall. If the top of the ladder begins to slide down the wall at the rate 25 cm/sec, then the rate (in cm/sec.) at which the bottom of the ladder slides away from the wall on the horizontal ground when the top of the ladder is 1 m above the ground is :
- A.$${{25} \over 3}$$
- B.25
- C.25$$\sqrt 3 $$
- D.$${{25} \over {\sqrt 3 }}$$
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