Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Gen Physics

  1. Sep 7, 2004 #1
    At the instant the traffic light turns green, an automobile starts with a constant acceleration (a) of 2.2 m/s^2. At the same instant a truck, traveling with a constant speed of 9.5 m/s, overtakes and passes the automobile.
    1) How far beyond the traffic signal will the automobile overtake the truck?
    2) How fast will the car be traveling at that instant?
  2. jcsd
  3. Sep 7, 2004 #2
    Welcome Mathize !
    Do not expect us to give you the answer ! You have to do your homework. Try this, and complain if you did not succeed, by showing what you tried.

    1) you can express the distance of each vehicle as a function of time : that is twice integrate for the car, and once integrate for the truck. Then find the time after wich both distance are equal.

    2) this is easier
  4. Sep 8, 2004 #3
    Thank you

    Thank you.

    I got it all figured out. It wasnt as bad as I thought it was.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook