Today in class, we began by learning 3 new types of charts/graphs: the LOL graph, the IF graph, and a third graph that shows the reactions between the two carts stuck together at rest, and then explode. Respectively, the first two graphs are of energy transfer and storage and of momentum transference. Personally, I enjoyed the LOL graph the best because it seemed to appear the mot clear to me.
Next, we had our postgame analysis:
1. Impulse (change in P) should be equal and opposite for the red & blue cart.
2. Total impulse for the whole system = 0
3. Total momentum before = total momentum after
-Ft = +Ft
http://www.youtube.com/watch?v=y2Gb4NIv0Xg - here is a good link on momentum and its characteristics.
Real world connection:
If two kids are playing with remote controlled cars one day and decide to see what happens when they drive them at each other, they would see that momentum would remain consistent throughout the collision. Moreover, if they calculated the impulse of their activity, it would turn out to be zero because in any sort of collision, the impulse always adds up to 0.
No comments:
Post a Comment