[SOLVED] Impulse and momentum Assignment
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Hi! I have already uploaded everything for this assignment. And I’m almost done with most of the parts expect summary that i would like you to complete it, please, and double check the requirements.
1. Check your smart cart and track. One table (1 groups) should have 1 red cart and 1 blue cart. Make sure your track is horizontal. (Use the water level)
One table (1 groups) will have 2 smart carts, 1 track, 1 magnetic bumpers, 3 different weights.
2. Download the templates.
Do NOT open Capstone at first. Capstone will open after you have downloaded the file. The file is “momentum and impulse” under “Smart Cart Labs”. https://www.pasco.com/prodCompare/smart-cart/index.cfm (Links to an external site.)
3. Capstone software
Download the file and ‘extract’ to a local folder.
Open the ‘SC Momentum & Impulse_JJ10.cap’. The Capstone software will be started.
(Capstone software functions you are going to use: ‘Highlight’, ‘Area under curve’, ‘Mean’)
Don’t forget to write down your summary and analysis at the end of the report.
4. Smart cart
When at the interface, look on the left side of the screen about half-way or so. You will see red (or blue) smart car with its identification number. Click on it and it will initialize the car. All frequency setting should be pre-set to (high values). You will do nothing here.
Before each measurement, zero the force sensor (zero the acceleration sensor if you need).
NOTE: PLEASE DO NOT LET THE CAR COME ALL THE WAY BACK AND FALL IN THE FLOOR!!!!!!
5. Measurement of part 1. Do the measurement first, do the calculation after all the measurements!
One partner will give the car an initial velocity while the other starts to record. Click the ‘Record’ button first, then push the cart with a small force. The initial velocity should be small. Stop recording after the collision is done. We use the magnet bumper and assume its effect is same as a spring bumper.
Force vs Time graph: You will see a nice force vs. time peak. The peak, when zoomed in and around properly, looks very nice. Hint: You may need to give it some “decent” initial velocity to see it enhanced. Highlight the peak, then use the ‘display area under curve’. It’s the ‘Area under the curve’. Use the mean function, it’s the ‘average force’.
Velocity vs Time graph: Obtain the velocity “JUST BEFORE” and the velocity “JUST AFTER” the collision to analyze the data. It means the time of the initial velocity and final velocity should corresponds to the ‘peak’s time you highlighted. You can open another table to check.
Add a Force and Velocity table: Find the highlighted part of force. Record the corresponding ‘initial velocity’ and ‘final velocity’. Then change the velocity to time, and record the ‘charge in time’
Do 4 trails.
Copy and paste your graphs from Capstone. Do the calculation of change in momentum. Then ask the TA to check your data. You should think the 3 questions in the lab manual before the second part, and answer the questions after all the experiment is done. Then exit the Capstone before part 2.
6. Measurement of part 2, collision.
The 2nd part of the lab involves two cars. You will connect the red car and blue car to the same computer.
Download the “Conservation of momentum” from the same webpage. Open the ‘SC Conservation of Momentum_JJ1.cap’. You will do 3 trials: 1, two carts; 2, two carts with mass (250g); 3, one cart and one cart with mass. Copy and paste your graphs from Capstone.
Insert a textbox to compare the difference of 3 collision and explain the difference. (Use the conservation of linear momentum)
7. Error analysis and summary.
7. Charge the smart cart!
When you are done, you need to PLUG THE CHARGERS BACK INTO THE SMART CARS TO LET THEM CHARGE UP!
Tips:
Please copy and paste all the graphs.
When you find your force sensor has a reading larger than 10 or has wild fluctuations, please use the acceleration sensor. If your force sensor has a malfunction, use the acceleration sensor. If you are using the acceleration sensor, ‘impulse = area under the acceleration curve * mass’.
If you see a warning about sampling rate, change the frequency to 50Hz or lower.
You can display two line in the same graph by using “add similar measurement”
