1. The problem statement, all variables and given/known data I have to calculate the speed with which a spud gun fires a bullet. The lenght of barrel is 1 meter. 2. Relevant equations v=s/t , where v=velocity; s=distance; t=time 3. The attempt at a solution NOTE: I will easily calculate distance. I have spud gun but I don't know the way how to calculate that speed which is not average speed of bullet.