Posted by Laura on Wednesday, October 3, 2012 at 10:57am.
A parachute on a dragster racingcar opens and changes the speed of a car from 85 meters/second to 45 meters/second. Of this car is decelerating (slowing down) at a rate of 8.9 meters/ second, how many seconds will this take?

Intergated chemistry/physics  Steve, Wednesday, October 3, 2012 at 11:33am
(4585)/(8.9) = 4.5
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