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 on a Position vs Time Graph

  1. Jun 9, 2010 #1
    A graph of position versus time for a certain particle moving along the x axis is shown in the figure below. Find the average velocity in the following time intervals. (The horizontal axis is marked in increments of 1 s and the vertical axis is marked in increments of 2 m.)

    avg velocity = change in x / change in y

    a. v= 2/10 = 0.2
    b. v= 4/5 - 0.8
    c. v= 2/0 = 0
    d. v= 3/10 = 0.3
    e. v= 8/5 = 1.6
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution

    Attached Files:

  2. jcsd
  3. Jun 9, 2010 #2
  4. Jun 9, 2010 #3
    I am sorry. I thought velocity-time graph. It is displacement- time graph. For displace-time graph,

    average velocity=(x2-x1)/(t2-t1)

    For example ,
    0 to 2s,
    average velocity=10/2=5 ms-1
    2 to 4s
    average velocity=(10-5)/2= 2.5 ms-1
    4 to 5s
    average velocity=0
    5 to 7s
    average velocity=5 ms-1
    7 to 8s
    average velocity=10/2=5 ms-1
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook