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A ladder 5 m in length is resting agains...

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 higher point of ladder when the foot of the ladder is 4.0 m away from the wall decreases at the rate of A) 1 B) 2 C) 2.5 D) 3

A

1

B

2

C

2.5

D

3

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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 1.5m/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 a)2m/s b)3m/s c)2.5m/s d)1.5m/s

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CHETANA PUBLICATION-Applications of Derivatives-Exercise
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