Recent content by Thomas Walsh

My point is not that because the balls have gained speed, that they have necessarily gained momentum; it is that they may have gained momentum, but we cannot be sure if they have or have not, unless we know the exact directions and speed at/in which they were pushed. This is because they...

i got in an argument with my physics teacher about a test question recently, and am still reluctant to abandon my logic. The question is a standard explosion problem, akin to this: A firework is placed in the midst of some motionless billiard balls. The firework goes off and the billiard balls...