1. For the same force, which cannon imparts the greater speed to a cannonball—a long cannon or a short one? Explain. 2. Consider a baseball that is caught and thrown at the same speed. Which case...

1. For the same force, which cannon imparts the greater speed to a cannonball—a long cannon or a short one? Explain.

2. Consider a baseball that is caught and thrown at the same speed. Which case illustrates the greatest change in momentum—the baseball (a) being caught, (b) being thrown, or (c) being caught and then thrown back?