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amd123
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Homework Statement
http://img824.imageshack.us/img824/6466/31231242.png
http://img835.imageshack.us/img835/5220/76022234.png
It's a free fall problem and I have to calculate a = g
Homework Equations
g = (2*(d-(vi * t)))/t^2
g = (2d)/t^2
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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