I have written a simulation for school that simulates balls being thrown under the influence of friction. To check if my results are correct, do you know if it is possible to calculate the trajectory? I can use the friction formulas of either stokes or newton. Is it possible to calculate how far a ball will fly for either of those? Wikipedia shows formulas for a free fall, but I don't think that suffices, as there is only one coordinate that changes in that case.