Acceleration decrease on inclined air track

AI Thread Summary
The discussion revolves around a cart on a 7° inclined air track experiencing a downward trend in acceleration despite an increase in velocity and time. The user is using the formulas v = (2x)/t for velocity and a = (2x)/(t^2) for acceleration but is puzzled by the unexpected results. Participants suggest considering the impact of air resistance, which could explain the decreasing acceleration. The user is encouraged to share data for further analysis. Understanding the effects of external forces like air resistance is crucial in this scenario.
kiyoshi7
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Hello, I have a cart going down an air track with an inclination of 7 ° and for some reason my acceleration is going on a downward trend, my velocity is increasing and naturally so is the time. to find velocity I'm using v = (2x)/t and for acceleration I'm using a = (2x) / (t^2). Can you tell mr what I'm doing wrong or what I'm missing?

I'm sorry if I'm not being clear if you want I can put the data up for you guys to see.

Thank you for your help.
 
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kiyoshi7 said:
Hello, I have a cart going down an air track with an inclination of 7 ° and for some reason my acceleration is going on a downward trend, my velocity is increasing and naturally so is the time.

So you are plotting acceleration versus time, expecting it to be constant and finding that instead it is trending downward. What result would you expect if air resistance were non-negligible?
 

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