1. Limited time only! Sign up for a free 30min personal 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!

Kinematics BVP

  1. May 17, 2012 #1
    The problem statement:

    A particle travels along the x-axis with uniformly accelerated motion. At times t and s its position is x and y, respectively. Show that its acceleration is a = 2(yt-xs)/ts(s-t).

    The attempt at a solution:

    I could be wrong, but it seems to me this problem is ill-posed. Couldn't one solution be a = 0? Couldn't another be that acceleration which gets the particle from rest at (x,t) to (y,s)?
  2. jcsd
  3. May 17, 2012 #2


    User Avatar

    Staff: Mentor

    It does seem to be ill-posed; A particle can get from one point to another (from x to y) in a given time interval using any choice of initial speed and a suitable constant acceleration. Another data point of some kind would be required to make the problem determinate.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Kinematics BVP
  1. Kinematic problem (Replies: 1)

  2. Kinematics Question (Replies: 6)

  3. Kinematic Question (Replies: 2)

  4. Football Kinematics (Replies: 13)