Collisions in Sledding
I think Winter is a great season. It's full of warm clothes, family, and lots of fun seasonal activities. It's also full of freezing temperatures, wet snow, and boots that can't keep your feet dry. While I've never attemped snowboarding or skiing (because of my total lack of coordination) I do enjoy sledding. Yes, it makes me feel 5 again, but I think it's something that you can enjoy at any age.
Ley's say that Jake, a 60 kg boy has just gone down a hill on a sled and has stopped at the bottom. His friend, Talyn who is 40 kg follows him down the hill and runs into him at 8 m/s. Upon the collision of the two sledders, they stick together and move farther across the flat surface at the bottom of the hill. If we wanted to find the speed at which they move together we could start by making a momentum table. This allows us to figure out the momentum of each person before the collision. Since momentum before is the same as momentum after, you would just have to solve for the missing velocity to figure out how fast the two went after colliding.
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