PHYSICS: So what happens to your applied for when you pull or push something at an angle?
Again, remember a few key things. One of the most important – net forces produce acceleration.
You can find Ff a couple of different ways – it’ll be part of a net force equation and can be found from the coefficient of friction equation. If and ONLY if your object is moving at a constant velocity, Ff will equal Fa. Fn is only sometimes equal to Fw. If your object is pulled at any angle (or pushed), Fn will be a part of Fnet in the vertical direction.