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December 20, 2014

December 20, 2014

Posted by **katie** on Wednesday, December 8, 2010 at 11:07am.

- physics -
**bobpursley**, Wednesday, December 8, 2010 at 12:07pmKatie, you have two conditions that must be met.

1) the sum of forces in any direction is zero.

2) THe sum of moments about any point is zero.

So, draw the figure. Sum forces in horizontal, and vertical equations: that gives you two equations.

Sum moments about any point on the ladder, I suggest the base.

With these three equations, you have it.

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