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A ladder, 10 metre long rests with one e...

A ladder, 10 metre long rests with one end against a smooth vertical wall and the other end on the ground which is rough, the coefficient of friction being `1/2`. The foot of the ladder being 2 metre from the wall. A amn whose weight is 4 times that of the ladder can ascend before it be givens to slip is

A

`(3)/(4)(10sqrt(6)-1)`

B

`(5)/(4)(10sqrt(6)-1)`

C

`(2)/(3)(5sqrt(2)-1)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
B
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