How Do You Calculate Net Force on an Inclined Plane?

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Homework Statement




http://img508.imageshack.us/img508/4687/93969364pc4.png



Homework Equations



ff
ovrer

fn = mu

The Attempt at a Solution




16 x 9.81 = o

o x sin (25) = p

p x .273
 
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anyone :( please?
 

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