Derive an expression for a Horizontal Force (F1) pushing an object along a rough surface with a given acceleration and compare it to Angled Force (F2) pulling the same object across the same surface (having the same coefficient of friction, u). Use your Free Body Diagrams, one for each case, to set up a system of equations, and combine them to a single expression (which will be simple). The expression for F1 needs to be in terms of F2, u, and any constants, coefficients, or trig fuctions necessary