today in class I was introduced to some basic incline problems. I know that Force weight can be resolved into 2 components-the parallel and the perpendicular. I was given the angle of the ramp to be $30 degrees$. Which makes the parallel component to be $w *cos30$ and the perpendicular component to be $w * sin30$. Now, this is the part of my question how do we know that the angle of the ramp (30) is equal to the angle of the force weight? Couldn't the angle in the force weight be a different angle? Why not? Thanks!