Hey, nothing better than being told you can roll things into each other, right? Unless your me and accidentally cause the funniest moment of the class when you discover that there springs on each of the cars that can be pushed in and hidden and popped out at the press of a button. ;)
This lab was all elastic and inelastic collisions, with equal and different weights. We did 16 total tests, 8 inelastic. For the elastic "collisions" there were magnets in the carts facing each other. Opposite charges came together so the carts bounced away as they got close. For the inelastic tests, velco, so that the carts would lock.
So lets just establish right now. Whenever heavy cart met light car (the heavy cart would have a mass three times more than the light cart) heavy cart won, and it often resultd in light cart going flying the other direction, unless it was going the same direction as the heavy cart, in which case their momentum would end up becoming one between the two of them.
When the carts were the same mass, they would exchange their momentum which was much closer to the same. When the exchange happened between heavy cart and light cart, one cart almost always slowed dramatically.
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