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 [Kurukshetra CEE 1996]

A ladder 5 m in length is resting against vertical wall. The bottom of

1.	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 [Kurukshetra CEE 1996]
A.	2 m/sec
B.	3 m/sec
C.	2.5 m/sec
D.	1.5 m/sec
Answer» B. 3 m/sec

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