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

Motion problems using antiderivatives

  1. Jan 17, 2012 #1
    1. The problem statement, all variables and given/known data

    An object moves in a straight line with velocity v = 6t-3t^2, where v is measured in metres per second.
    a) how far does the object move in the first sec?
    b) how far does the object move in the first two seconds?
    c) the object is back where it started when t=3. how far did it travel to get there?

    2. Relevant equations

    3. The attempt at a solution

    the only bit i got was the anti derivative s=3t^2-t^3+c

    help is requested :D
  2. jcsd
  3. Jan 17, 2012 #2


    User Avatar
    Science Advisor
    Homework Helper

    a) should be pretty easy. It's the difference between s when t=1 and s when t=0, isn't it? Try working that out first.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook