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Posted by on Thursday, May 3, 2012 at 3:49pm.

A car rolling at 18m/s when the driver hits the breaks after 5 seconds the car has slowed down to 3m/s find the cars acceleration you most write down all given information and show all work

WHat does this acceleration tell us about the motion of the car?

  • physics - , Friday, May 4, 2012 at 3:38pm

    v = vₒ + a•t ,
    a = (v - vₒ)/t = (3 – 18)/5 = - 3 m/s².
    This acceleration tells us that this is decelerated motion.

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