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course Phy 241
12/7 11
Steel Ball overtaking other Here we had two steel balls. both large. there were two ramps side by side, both with the same slope. ball 1 i'm going to call the ball which was released from rest 20 cm up its ramp.
ball 2 i'm going to call the ball from rest with an extended distance of 10cm up the other ramp (30cm total). both were released from rest.
ball 1 had a ramp slope of 16.6%
ball 2 had ramp slope of about 30%
We made 7 trial runs to see when ball 2 overtook ball 1, how long it took to do it, and at what distance measured down from the initial starting point of ball 2's ramp.
Trial | distance overtook | time
1 21.2cm 1.75s
2 22.5cm 3s
3 25cm 1.7s
4 23.1cm 2.25s
5 23.5cm 2.35s
6 22cm 2.5s
7 23cm 2.55s
I know that the 3s time is pretty much way off, and the 1.7 could be as well, but we could discart that and take the average time it took to overtake, and the average distance it took to overtake it, and grind out some
information from that. I made a graph of velocity vs time as well as distance vs time. both are pretty intersting because the graphs of the two balls overlap at a certain point, and that point is where it overtook the other, and
at what distance it overtook it at.
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Good data, and you appear to have much of the analysis done. Additional questions are in the 111130 document.
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