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A ladder 10m long rest against a vertic...

A ladder 10m long rest against a vertical wall with the lower end on the horizontal ground. The lower end of the ladder is pulled along the ground away from the wall at the rate of 3 cm/sec. The height of the upper end while it is descending at the rate of 4 cm/sec is

A

`4sqrt3 m`

B

`5sqrt3 m`

C

`5sqrt2 m`

D

6m

Text Solution

Verified by Experts

The correct Answer is:
D
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