1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Acceleration of a crashing car

  1. Sep 14, 2010 #1
    1. The problem statement, all variables and given/known data
    A car traveling 81 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.85 m.

    What was the average acceleration of the driver during the collision?

    2. Relevant equations

    3. The attempt at a solution

    I've converted the speed to meters per second but keep getting stuck when trying to get the equations of the distances.
  2. jcsd
  3. Sep 14, 2010 #2
    What relevant equations are you trying to use
  4. Sep 14, 2010 #3
    I actually just figured out what I was doing wrong!
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook