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## Homework Statement

The movable bracket shown may be placed at any height on the 50-mm-diameter pipe. If the coefficient of static friction between the pipe and bracket is 0.30, determine the minimum distance x at which the load P can be supported. Assume that the bracket is weightless.

http://img396.imageshack.us/img396/18/220selftest27vo7.gif [Broken]

## Homework Equations

Sum of Forces and Moments = 0 for equilibrium

F_f = uN

## The Attempt at a Solution

I got stuck after getting the equilibrium equations. Too many variables and not enough equations.

http://img254.imageshack.us/img254/7721/mech220fbd7mj4.jpg [Broken]

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