A ladder 5 metres 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. When the foot of ladder is 4.0 metres away from the wall , the rate of decrease of the height on the wall is: *

A ladder 5 metres in length is resting against vertical wall. The bott

1.	A ladder 5 metres 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. When the foot of ladder is 4.0 metres away from the wall , the rate of decrease of the height on the wall is: *
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A ladder 5 metres 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. When the foot of ladder is 4.0 metres away from the wall , the rate of decrease of the height on the wall is: *​

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A ladder 5 metres 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. When the foot of ladder is 4.0 metres away from the wall , the rate of decrease of the height on the wall is: *