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!

Instantaneous velocity

  1. Jan 26, 2005 #1
    I've constructed a d-t graph and the question is, how do I calculate the instantaneous velocity, vinst, for each slope break? How do I find the slope break? Do I calculate it using v=chginx/chgint formed by the tangent line to the point or using the point alone simular to Vavg. I've drawn tangent lines to the peaks of the curves and computed rise over run with incorrect results.
  2. jcsd
  3. Jan 26, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    Have you taken calculus, or do you know how to take derivatives?
  4. Jan 26, 2005 #3

    you have the movement equation? if you have it and you have taken calculus you must know the vinst ist the first derivative of the function evaluated at the point you want to calculate vinst.
  5. Feb 7, 2005 #4
    Thanks. I was puzzled as to where to find the slope breaks. Once I graphed this out, I saw several linear lines that crossed each other along the graph and it was at these points I calculated Vinst.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Instantaneous velocity
  1. Instantaneous Velocity (Replies: 2)

  2. Instantaneous Velocity (Replies: 1)

  3. Instantaneous velocity (Replies: 16)

  4. Instantaneous Velocity (Replies: 2)