When you’re carrying a heavy box and running for the door, the momentum makes it hard to turn. That’s why you crash into walls. Next time, think: "I have high momentum. I must slow down or become a drywall decoration." It also explains why angry geese are terrifying—they fly at you with rapid velocity and a vengeful soul. Their mass is low, but the velocity of rage is high.
If you’re a football player, you want to increase your momentum before a tackle. That means getting fatter or faster. Most players choose faster; some choose both (looking at you, offensive linemen). The coach who yells "You need more momentum!" is actually yelling physics. You’re welcome.
Momentum (examples, solutions, videos, notes)
When Things Go Wrong
Have you ever tried to stop a shopping cart that’s filled with 20 bags of potatoes and a child? That’s momentum betraying you. The cart has high mass (potatoes) and moderate velocity (you running after it). To determine if you can catch it, ask: "Do I have more momentum than that pile of starch?" The answer is usually no.
Also, note that momentum only works in one direction—straight ahead. That’s why a spinning figure skater doesn’t fly off the rink; she’s conserving angular momentum. But we’re not talking about that today. That’s a whole other level of physics—and a whole other excuse to buy a donut.
