Calculating acceleration from 2 tangent lines

  • Thread starter azn4lyf89
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  • #1
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I have a position vs. time graph which is slightly curved. I found the slope of 2 tangent lines which I know are the velocity. My question is how do I get the acceleration using these 2 slopes. One slope is 295cm/s and the other is 575cm/s. I know that avg acceleration is final velocity - initial velocity/ final time - initial time but because these points aren't at the initial and final times, I don't think I can use that.
 

Answers and Replies

  • #2
Then don't use final time in the acceleration equation! If acceleration is a constant, you can calculate it over any time interval.
 

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