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Homework Help: Instantaneous Velocity

  1. Sep 25, 2014 #1
    1. The problem statement, all variables and given/known data
    I am having trouble with the last question my teacher gave me. I have attached a picture. It is about instantaneous velocity. I did the same thing for all the other questions?

    Screen Shot 2014-09-25 at 7.50.10 PM.png

    2. Relevant equations
    average velocity = delta x / delta t

    3. The attempt at a solution
    I did 0-(-6)/(8-7) = 6
  2. jcsd
  3. Sep 25, 2014 #2
    I figured it out. Apparently the tip of the line is not on 6 but on 5. I think that is not very visible.
  4. Sep 25, 2014 #3

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper

    Well done :)
    When graphs have a fat line, the pointy-bits can cover a lot of ground. Always read to the middle of the line - use a ruler if you can.
    For the future - please show your working. That would make how you are thinking clear so we can best help you.
    Don't worry about looking stupid - we have all done stupider things than you: we understand ;)
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