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!

Average velocity

  1. Jan 11, 2009 #1
    1. The problem statement, all variables and given/known data

    A construction worker drops a bolt while working on a high-rise building 320m above the ground. After t seconds, the bolt has fallen a distance of s metres, where s(t) = 320-5t^2, 0 <= t <=8

    Find the average velocity for the interval 3<=y<=8

    2. Relevant equations

    3. The attempt at a solution

    I used the formulas [tex]\Delta[/tex]s / [tex]\Delta[/tex]t
    which then =
    s(8) - s(3) / (8-3)


    Is this right?
  2. jcsd
  3. Jan 11, 2009 #2
    The magnitude is correct but I think you want to keep the negative sign to indicate direction.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Average velocity Date
What was your average speed? Jul 17, 2017
Geometric average versus arithmatic average Mar 23, 2017
New average age Mar 11, 2017
Average velocity question Sep 6, 2012
Average Velocity over intervals Sep 12, 2009