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May 26, 2015

Homework Help: Physics - please, I really need help

Posted by Sam on Tuesday, February 3, 2009 at 10:39pm.

a car attempts to stop and slides 25.5m while accelerating at -4m/s^2. The car's initial velocity was 20m/s. Find the time the slide took. Note that the final velocity is not known and that you need a quadratic solution.

I know the quadratic formula, but I'm not sure how to plud in the values; could sombody please calrify. Thank you in advance. :)

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