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Simple Train Acceleration after elapsed time question

  1. Sep 1, 2008 #1
    As a train accelerates away from a station, it reaches a speed of 4.6 m/s in 5.2 s.

    If the train's acceleration remains constant, what is its speed after an additional 6.0s has elapsed?

    I know I should be able to do this,but nothing I try works.If anyone could just point me the right way, I would really appreciate it. Thank You.
  2. jcsd
  3. Sep 1, 2008 #2
    Well if you have the change in speed and change in time, then what is the acceleration? Then once you have that, you can plug that into:

    [tex]v = v_0 + at[/tex]
  4. Sep 1, 2008 #3
    Thanks a lot, I really appreciate the help. I was going insane, but I realize I skipped the fact that I needed to find the acceleration first.

    I wont make that mistake again. Once again thanks for the help!!
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