Posted by **Bongo** on Tuesday, January 29, 2008 at 12:23pm.

While driving her new Camaro at 20.0 m/s down a four-lane highway, Jessica comes up behind a slow-moving dump truck and decides to pass in the left-hand lane.

If Jessica can accelerate at a rate of 5.0 m/s^2, how long will it take for her to reach a speed of 30.0 m/s?

( I need as much detail as possible, I am completely lost please explain)

- Physics -
**drwls**, Tuesday, January 29, 2008 at 12:40pm
To go from 20.0 to 30.0 m/s, that is a velocity change of 10.0 m/s.

From the definition of acceleration,

a = (velocity change)/(time required)

In this case you know that a = 5.0 m/s^2, so

time = (10.0 m/s)/(5.0 m/s^2)

= 2.0 seconds

## Answer This Question

## Related Questions

- physics - while driving his sports car at 20.0 m/s down a four-lane highway, ...
- 11th grade - While driving his sports car at 20.0 down a four lane highway Eddie...
- Science - Nathaniel is driving his sports car down a four lane highway at 40m/s...
- physicsss - while driving his sports car at 20.0 m/s down a four-lane highway, ...
- Science - Please complete the formula and process in arriving the answer. Please...
- physics - Assume the truck is going at v0 = 25 m/s, and you're 20 m behind the ...
- Physics - A truck travels at a constant speed of 28.0 m/s in the fast lane of a ...
- physics - You are driving on a very long, very straight 2 lane road, stuck ...
- physics - You are driving on a very long, very straight 2 lane road, stuck ...
- Physics - A car is behind a truck going 18 m/s on the highway. The car's driver ...

More Related Questions