lab#3Aworksheetinperson

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Salt Lake Community College *

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2010

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Physics

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Jun 1, 2024

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Name: Bryan Meza Lab #3A: Cart on a Ramp Objectives: In this lab we are using a ramp with an incline and a motion detector attached to the end of ramp. We are using a low- friction cart to collect position, velocity, and acceleration vs. time graphs, we are collecting these graphs to analyze them and to determine the best fit equations for these time graphs. With the graphs we are also determining the mean acceleration from the acceleration vs. time graph. Equipment: Station #:5 Partner: Tristan , rating: #5/5  Computer  Logger Pro Program  LabQuest Mini  Vernier Motion Detector  Cart, track and feet  Elastic Preliminary Questions: #1: (Don’t have logger pro) Describe: At first, the cart is somewhere along the ramp. It is anticipated that the cart will initially move with some initial velocity up the ramp and some first negative acceleration (down the ramp) caused by the acceleration caused by the cart's weight. The cart is supposed to keep rolling up the ram in this manner until it reaches a specific point in the ramp and time. where the cart stops traveling in the ramp and the velocity ultimately becomes zero. The cart is now anticipated to gain velocity in the opposite direction as a result of the approaching negative acceleration (it begins traveling down the ramp) and continue moving until it reaches the end of the ramp. #2: (Don’t have logger pro) Describe: It is anticipated that the cart will initially move with some initial velocity up the ramp and some first negative acceleration (down the ramp) caused by the acceleration caused by gravity on the cart. Up until a certain point, when the velocity eventually becomes zero and the cart stops travelling up the ramp, the cart is anticipated to continue moving in this way (rolling up the ramp). The cart is now anticipated to gain speed in the opposite direction as a result of the approaching negative acceleration, travelling until it hits the ramp. #3: (Don’t have logger pro) Describe: Since the acceleration is constant, the graph will follow a horizontal line and the acceleration will remain constant throughout. Procedure: Part 1: Procedure: In this lab all we had to do for preparation was to attach the cable to the LabQuest Mini and to the computer. Everything else was already set to go. As soon as we got everything ready to go, we just did some practice trials to see if everything

is working properly. We thought our first trial was pretty good, but we ended having to re-do it since the graph was not accurate. After another trial, we ended up getting a very good graph to being able to analyze it. Step #5: Analysis Part 1: #1: Why are the graphs inverted? It is inverted because it starts from far away and goes toward the ramp which is why the y-axis of the graph is fro 1 m to 0.2 m.

#2 #3:

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#4-a #4:-b

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What was the velocity of the cart at the top of its motion? 0.005 m/s What was the acceleration of the cart at the top of its motion?0.730 m/s2 As you moved the examine bar back and forth along the graphs, did the computer record a data point for each graph at the exact moment it hit the top of the ramp? Yes it did #5-6: Record your correlation value: 0.9998 How close is your correlation to 1? We are fairly close, just a 0.0002 difference.

#7: Record your correlation value0.9996 How close is your correlation to 1? It is very close, we are just 0.0004 away from 1 Record your slope value0.6905 m/s/s How closely does the slope value match the acceleration you found in the previous step? It is very close

#8 Record your mean value0.4662 How closely does the mean acceleration value compare to the values of acceleration found in Steps 6 and 7? It is very cose Procedure: Part 2: In the second part of this experiment instead of pushing the cart towards the motion detector, we are dropping the cart from the top and letting it bounce off the rubber band at the end of the ramp. With this we are going to collect the data of the motion graphs for each bounce and analyze it. Analysis Part 2:

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#1 Is the slope the same each bounce? The slop is not the same, it goes down each bounce #2 Is the quadratic fit the same each bounce? No, they’re fairly different but not too far off Does the acceleration determined using the velocity graph match the acceleration found using the position graph for the same and each bounce segment? They’re about the same for each bounce segment Conclusion: (in your own words) Our initial attempts at making a good graph were a touch off due to the placement of our motion detector; however, we later tried again and produced a better graph, which we used to finish this project. All three motion graphs—for position, velocity, and acceleration—were eventually gathered. The outcomes of this experiment were fascinating to observe. On the preliminary questions, it basically turned out as I expected, but it's really fascinating to see on the graphs and be able to analyze it, especially the graphs where we used the elastic. observing each bounce's decline. The location of the motion detector would have to be one of the sources of inaccuracy in this experiment because if it is off, it won't read the motion cart very correctly. Even though everything appears to be set up and ready to go for the next experiment, I would check everything again to be sure it is in the proper position.

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