1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    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!

Velocity and Acceleration - - PLEASE HELP : (

  1. Sep 20, 2007 #1
    [URGENT] Velocity and Acceleration - - PLEASE HELP : (

    1. The problem statement, all variables and given/known data

     = delta

    6. (a) The velocity equation for an object moving with constant acceleration a is given
    as vf = vi + a t . Solve this equation for the time interval  t.
    (b) The position equation for an object moving with constant acceleration is given as
    x = vit + ½ a(t)2 . Substituting the  t obtained from (a) into this equation, solve for (vf)2 .


    2. Relevant equations

    N/A


    3. The attempt at a solution

    for a) i rearranged the equation to t = (Vf-Vi) / a
    b) I substituted (a) into (b)

    x = Vi [ (Vf-Vi)/a ] + 1/2 a [ (Vf-Vi)/a ]^2

    am i doing it right?
    how do i simplify that to solve for (Vf)^2
     
  2. jcsd
  3. Sep 21, 2007 #2

    learningphysics

    User Avatar
    Homework Helper

    Yeah, you're doing it right... multiply everything out... try to simplify.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Velocity and Acceleration - - PLEASE HELP : (
Loading...