Posted by **Laura** on Wednesday, October 3, 2012 at 10:57am.

A parachute on a dragster racing-car 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
(45-85)/(-8.9) = 4.5

## Answer this Question

## Related Questions

- Intergated chemistry/physics - A car is accelerated at a rate of 2.5 meters/...
- Physics - Kelly is driving a car with a mass of 800 kilograms in a south ...
- Physics - A car accelerates uniformly (a = constant) from 34 meters/second up ...
- physics - A bicyclist moving at a constant speed takes 10.0 seconds to travel ...
- physical science - A car with a mass of 1,200 kilograms is moving around a ...
- physics - a car moving at 15 meters per second skids to a stop in 20 meters. if ...
- Science - Here are some muliple choice questions I am stuck on. Thanks in ...
- Math - r=40-2t shows the relationship between the average rate of speed, r, of ...
- Calculus - A team has been working to convert diesel-powered cars to run just as...
- physics - A car is originally traveling at 15.0 meters per second on a straight ...