We are doing this for our physics class, and they are very basic, easy questions. But it is worth a lot, and might end up being our final. (We're allowed to get help any way possible) 1. The problem statement, all variables and given/known data A cannonball shot from a long-barrel cannon travels faster than one shot from a short-barrel cannon because the cannonball receives greater a. force b. impulse c. both a and b d. neither a and b 2. Relevant equations impulse= Ft F=ma 3. The attempt at a solution I think it is just b, instead of c, because I don't think there is a greater force. It doesn't indicate that a greater force is used on the bigger cannon. But the longer barrel gives it more time, therefore a greater impulse, right? Just having a brain fart. :P And the easier problems get me, because I over-analyze.