(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

It's a free fall problem and I have to calculate a = g

2. Relevant equations

g = (2*(d-(vi * t)))/t^2

g = (2d)/t^2

3. The attempt at a solution

I've made a graph and I've obtained a best fit polynomial equation.

I know that m/t^2 = a, however if I just divide the position by time squared will that alone give me acceleration?

I've tried finding initial velocity by subtracting (p2-p1)/(t2-t1) and the change in time with (t2-t1) and delta d (d2-d1) and I used this as vi for the first equation I gave...but this calculation gives me 0. Basically all the calculations cancel each other out.

I've tried taking the position * 2 and dividing by t^2 and I'm still getting an acceleration value that keeps changing as the position and time increases.

What am I doing wrong?

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# Acceleration from Position vs Time^2 ?

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