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## Homework Statement

http://www.sumoware.com/images/temp/xzebnqpmgdnohmgo.png [Broken]

An isosceles-triangle-shaped ladder like the picture above, has a negligible mass. A man with mass

*m*kg climb the ladder till the height is 3 meter (see picture above).

Determine the tension of the link (at horizontal position in the picture) between the sides of ladder.

## Homework Equations

ΣF = 0

Στ = 0 (τ is moment)[/B]

## The Attempt at a Solution

I've drawn the free body diagram

http://www.sumoware.com/images/temp/xzbotpidknnxeqfp.png [Broken]

I didn't draw the gravitational force of the ladder since the ladder mass is negligible.

∑F

_{x}= 0

N

_{4}= N

_{3}

ΣF

_{y}=0

N

_{1}+N

_{2}+N

_{man}- W

_{man}= 0

Then I don't know what to do.. Please help me

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