A 13-m long ladder is leaning against a wall. The bottom of the ladder is pulled along the ground
Channel: Doubtnut
Date: 2020-04-19

A 13-m long ladder is leaning against a wall. The bottom of the ladder is pulled along the ground, away from the wall, at the rate of 2 m/s. How fast is its height on the wall decreasing when the foot of the ladder is 5m aways from the wall ?