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A ladder 20 ft long has one end on the g...

A ladder 20 ft long has one end on the ground and the other end in contact with a vertical wall. The lower end slips along the ground. If the lower end of the ladder is 16 t away from the wall, upper end is moving `lamda` time as fast as the lower end, then `lamda` is

A

`1/3`

B

`2/3`

C

`4/3`

D

`5/3`

Text Solution

Verified by Experts

The correct Answer is:
C
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