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

The graph I have posted is the result of using a motion sensor above a bouncing ball.

I am asked to write a clear interpretation of the meaning of each parameter in the equation Y=At^2+Bt+C.

2. Relevant equations

Y=Ax^2+Bt+C

y=y0+v0t+1/2at^2

3. The attempt at a solution

http://imageshack.us/photo/my-images/687/screenshot20110902at112.png/

I think relating the above two equations that B is the initial velocity and C is the initial position. "A" however is confusing me.

Also if C is indeed the initial position I'm not quite sure I understand why it is negative.

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# Homework Help: Bouncing Ball Graph/Quadratic Formula

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