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

Finding Time, given velocity and acceleration

  1. Feb 26, 2009 #1
    1. The problem statement, all variables and given/known data

    A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.9 m/s. Two seconds later the bicyclist hops on his bike and accelerates at 2.0 m/s^{2} until he catches his friend.

    2. Relevant equations


    3. The attempt at a solution

    Well I could put the numbers in the equation but I know its wrong anyways. Not sure how to get this problem going.
    Last edited: Feb 26, 2009
  2. jcsd
  3. Feb 26, 2009 #2


    User Avatar
    Homework Helper

    You need distance formulas because the distance travelled is the same in both cases.
    Don't forget to account for the 2 second delay. You might want to put t in one formula and t-2 in the other.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook