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-   -   How can I find the avrage speed ? (https://www.askmehelpdesk.com/showthread.php?t=330806)

  • Mar 18, 2009, 09:19 AM
    doraa
    how can i find the avrage speed ?
    Starting from a pillar, you run a distance 200 east (the x-direction) at an average speed of 5.0 , and then run a distance 280 west at an average speed of 4.0 to a post.
  • Mar 18, 2009, 10:06 AM
    Wuerschti

    Include Units + Vector Diagram!

    200/5= 40 seconds

    280/4= 70 seconds

    Total distance(not displacement) (200+280)/(40+70seconds)

    480/110=4.363636363636
  • Mar 18, 2009, 11:40 AM
    doraa

    ThankXxXx ;p another Q ! What ABout the average velocity !??
  • Mar 18, 2009, 04:03 PM
    Wuerschti

    sure velocity is the displacement divided by total time.

    80/110-=0.7272
  • Mar 18, 2009, 05:50 PM
    ScottGem

    Please review the guidelines on asking for help with homework that can be found here:



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