F=(mw+mb)*g*cosθ is the force going down the ramp. therefore for the wedge to move down the ramp and the block to not slip the F=(mw+mb)*g*cosθ must be equal to the Fsmax of the block.
so...
Fsmax = (mw+mb)*g*cosθ... since fsmax is equal to us*Fn we can sub it in...
us*Fn = (mw+mb)*g*cosθ...
thanks guys i appreciate the help.
rl.bhat i understand the equation u got and that would mean F*cosθ and F*sinθ are both components to equal fk ? and to prevent the slipping of the block it should be equal to fsmax?
how can u solve this equation tho without varaibles other then gravity?
Homework Statement
A wedge slides down a frictionless inclined plane that makes angle with the horizontal. A small block is placed at the horizontal top side of the wedge. During the slide, the block does not move relative to the wedge. Find the minimum possible coefficient of static friction...