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December 18, 2014

December 18, 2014

Posted by **Please help this time?? Becca** on Sunday, September 17, 2006 at 10:22pm.

I'm not sure how I'm supposed to set up the equation. I know avg v= delta x over delta t, but I can't get it so that it works.

The average V while accelerating and decelerating is half the uniform velocity between B and C. If all three distances are equal, it will therefore take twice as long to do AB or CD as it will to travel BC. That means 2/5 of the time is spent accelerating and decerlating, and 1/5 at constant velocity (BC).

You had the right equation in mind, but just needed to follow through with the logic.

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