Posted: September 17th, 2017
Repeat the first run, but add the refrigerator to the top of the crate by dragging it there. Compare the results to the first run. (Don’t forget to record the mass!)
Remove the refrigerator, and slide the friction bar to medium. Record the mass, and increase the force to 100 N. Record what you observe. Now, increase the force until the crate begins to move, and record what you observe. Compare the results to the first run. Why do they differ?
Keeping the friction bar at medium, add the refrigerator, and repeat the steps for the third run. Compare the results to the third run. Why do they differ?
Now, you choose a combination that you’re interested in, and record the results. Are they what you expected based on your previous observations?
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