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

Help with Acceleration

  1. Sep 7, 2009 #1
    1. The problem statement, all variables and given/known data
    The figure shows the motion diagram, made at two frames of film per second, of a ball rolling along a track. The track has a 3.0m-long sticky section.
    http://img30.imageshack.us/img30/2278/screenshotkh.png <-- The graph with the coordinates
    2. Relevant equations

    3. The attempt at a solution
    a=3-2/2-1 = 1 + 3.96

    I've tried a bunch of ways but could not get it
  2. jcsd
  3. Sep 7, 2009 #2
    You are asked to figure out the acceleration of the ball in the sticky section of the track.

    (1) First determine the initial speed [itex] V_i [/itex]?
    (2) Then determine the final speed [itex] V_f [/itex]?
    (3) What is the distance [itex] x [/itex] over which this change in speed occurs?
    (4) Have you learnt a formula which relates these three quantities? The formula
    I am thinking of is [tex] V_f^2 - V_i^2 = 2 a x [/tex]. Then use this formula and
    and ask your teacher if it is legitimate to do so.
  4. Sep 7, 2009 #3
    Ok, I got it. Thanks!
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Similar Discussions: Help with Acceleration
  1. Help acceleration (Replies: 4)

  2. Help with acceleration (Replies: 3)

  3. Acceleration HELP (Replies: 8)

  4. Acceleration Help? (Replies: 13)