lab report

lab report - Lab Report October 19th 2007 Lab Report...

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Lab Report October 19 th 2007 Lab Report Experiment 4 Problem 3 Introduction In problem three we had 2 carts collide into eachother, cart “A” and cart “B”. We had three different cases. In case 1 car “A” had a combined mass of 705 grams and cart “B” weighed 285 grams. In case 2 they weighed the same and in case three cart “B” and “A” switched the weight as in case 1. Using photogate we measured the velocity of cart 1 hitting a stationary cart 2 and the velocity of cart 1 and 2 after the collision. Theoretical This experiment is a simple case of the Law of Conservation of Energy. The experiment should show that when the 2 carts collide they should maintain the same energy. So if cart one weighs more and is going at a velocity of 5 m/s hits cart 2, which weighs less, we can expect cart 2 to have a greater velocity than 5 m/s. This is because velocity and mass are related when talking about energy. Method Questions #1 #2 ( ½ M1*(V1)^2) + ( ½ M2 *(V2)^2)

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# 3 (KE)initial - (KE)final Experimental For the experiment we had three different cases. We ran 6 runs for each case. The
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Unformatted text preview: data was as we expected. Data Case 1 Vi A Vf A Vf B Kei Kef Loss 1 2.65 2.64 3.51 3.48 0.03 2 2.28 2.27 2.59 2.58 0.01 3 2.28 2.27 2.59 2.58 0.01 4 2.4 2.39 2.88 2.85 0.03 5 2.12 2.09 2.2472 2.24 0.0072 6 2.92 2.9 4.2632 4.26 0.0032 Case 2 1 3.07 1.27 4.62 3.7 3.67 0.03 2 3.07 1.36 4.5 3.7 3.51 0.19 3 3.94 1.82 5.53 6.09 6.04 0.05 4 3.57 1.56 5.21 5 4.82 0.18 5 4.1 1.82 6.12 5.6 5.96-0.36 6 3.76 1.63 5.67 5.55 4.46 1.09 Case 3 1 2.94 1.15 1.44 1.23 1.07 0.16 2 3.42 1.34 1.76 1.66 1.42 0.24 3 2.36 1.07 1.12 0.79 0.71 0.08 4 2.69 1.16 1.37 1.03 0.88 0.15 5 3.21 1.42 1.68 1.47 1.35 0.12 6 2.99 1.41 1.51 1.27 1.18 0.09 Analysis/Results Case 1 0.5 1 1.5 2 2.5 3 3.5 4 4.5 1 2 3 4 5 6 Vi A Vf A Vf B Kei Kef Case 2-1 1 2 3 4 5 6 7 1 2 3 4 5 6 7 Vi A Vf A Vf B Kei Kef Loss Case 3 0.5 1 1.5 2 2.5 3 3.5 4 1 2 3 4 5 6 7 Vi A Vf A Vf B Kei Kef Loss Conclusion In conclusion the data supports the law. No energy can be created or destroyed....
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