Posted by lisa 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  Elena, 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.