A ladder 13 m long is leaning against a wall. The bottom of the ladder is pulled
Channel: Doubtnut
Date: 2019-12-27

A ladder 13 m long is leaning against a wall. The bottom of the ladder is pulled along the ground away from the wall at the rate of 4 m/sec. Find the rate of decreasing at which the top of the ladder moving downwards on wall when the foot of the ladder is 5 m away from the wall.

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jee mains 2020, jee main january, class 12, jee main maths, jee 2020, cbse board, jee main question paper, up board question paper, up boards 2020, up board exam,up board sample paper, cbse class 12, cbse class 10, nageen prakashan, nootan publication