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

Rearranging highschool physics equations

  1. Oct 24, 2012 #1
    Hey I am in physics 30 and i am having trouble rearraging this eqaution: d=vt+1/2at^2

    V= velocity 1
    a= acceleration
    t= time

    I need to solve for t. Could anyone help me out with the rearranged equation
    by the way, the last t in the equation is supposed to be squared
  2. jcsd
  3. Oct 24, 2012 #2


    User Avatar
    Science Advisor

    That's a quadratic equation, [itex](1/2)at^2+ vt- d= 0[/itex] and can be solved using the "quadratic formula": if [itex]px^2+ qx+ r= 0[/itex], then
    [tex]x= \frac{-q\pm\sqrt{q^2- 4pr}}{2p}[/tex]

    Here, p= a/2, q= v, and r= -d.
  4. Oct 24, 2012 #3
    that does not help me sorry.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Rearranging highschool physics equations