differentiation

Question: A ladder 5 m in length is resting against vertical wall. The bottom of the ladder is pulled along the ground away from the wall at the rate of $1.5\,m/\sec $ . The length of the highest point of the ladder when the foot of the ladder $4.0\,m$ away from the wall decreases at the rate of



1) 2 m/sec
2) 3 m/sec
3) 2.5 m/sec
4) 1.5 m/sec
Solution: Explanation: No Explanation
Application of Derivatives

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