woww.. sorry for the super-delayed scribe post. should've figured I was scribe after Sergio was on Thursday. Well, this is going to be the most strain I've put on my memory since a long time. On Fridayy.... we worked on our lab; CONSERVATION OF MOMENTUM: A COLLISION IN TWO DIMENSIONS. On the side of our tables, we clamped little ramps that consisted of a ruler-measured ramp, a set-screw and a plumb line (a string with a weighted tip). We used the plumb line to determine Point Zero on four sheets of paper & carbon paper that we taped together and layed on the floor.We then rolled the steel spheres off the ramp at 25 cm from the edge of the ramp several times to determine the Original Momentum (simply rolling the sphere off the ramp several times, no collisions) and circled the area where the most dots resulted by the sphere landing on carbon paper. Then we placed a second steel sphere on a set-screw, and after making sure the two spheres will be at the same height when they collided, we rolled the incident sphere down the ramp another several times. We then circled the bunch of dots the same way we did when we figured out the Original Momentum of the sphere. Afterwards, we drew lines that connected the three circles (around the original momentum marks, incident sphere and target sphere marks) to Point Zero. We added the vectors of the incident sphere and target sphere momentums to get the total momentum after collision. Then we (or some of us) repeated everything (besides finding out the Original Momentum) all over again after we relocated the set-screw to a different spot. Lastly, we answered a few questions in the Interpretation section at the end of the second page. Oh.. and everything was done under the observing-eyes of three guys from Germany, Australia and University of Winnipeg, I thinkkkk it was. They observed and helped us with our lab, for example; giving us nickles and dimes to trace perfect circles. That was everything I (surprisingly) remembered. If I missed anything, I'm sorry (not), but I tried hard to recall what happened.
&&the next scribe post was already chosen, evidently. cuz he posted his before mine! haha
p.s. we might've had a hand-out at the end of class????? no clue
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