MHT CET 2023 Mathematics question
A ladder of length 17m rests with one and against a vertical wall and the other on the level ground. If the lower end slips away at the rate of 1m/sec, then when it is 8m away from the wall, its upper end is coming down at the rate of
Answer: (B)
Solution
Let the foot be m from the wall and the top m above the ground: . When , . Differentiate w.r.t. time: m/s.
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