1. The problem statement, all variables and given/known data 423,000=5504v+4.37v^3 2. Questions Could someone please advise on how to solve for velocity(v)? Our tutor solved the equation using equation solver software to get 36.9 m/s (133km/h) but he included it in our exam and wanted a manual calculation of the velocity... It's beyond me, I am just trying to gauge how difficult it is to obtain the answer as I find it unusual that he had to use software to get a value but expected us to calculate it manually.