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-   -   Average speeed man (https://www.askmehelpdesk.com/showthread.php?t=156364)

  • Nov 26, 2007, 06:13 PM
    lindsaylovesyou
    Average speeed man
    I have a lab report due tomorrow but I can't figure out the mathematics of it.

    Here's my problem:

    I have a data chart showing distance and time, and I need to find the average speed.

    There are 31 pieces(?) of data.
    Each one has a measurement of distance and its time.
    I need to find the average speed of alll these and I can't seem to do it.
    My problem is that the distances are measured in cm,
    But the time is measured in 1/60th of a second each.

    If the time stays consistent... meaning that there's a 1/60th of a second increase each time, but the distance increases each time, HOW DO I FIND THE AVERAGE SPEED?

    Thanks.
    Peace.
  • Nov 26, 2007, 06:54 PM
    asterisk_man
    Average speed is simple to calculate. Take the total distance traveled and divide it by the total amount of time elapsed.

    So, in your case you have 31 pieces of data which are each 1/60th of a second apart. Assuming that the first piece of data was taken at time 0s the nth piece of data is at (n-1)/60 s. So you've got 1/2 second total. So the average speed will be the distance marked in the last piece of data divided by 0.5 s.

    Hope that helps!

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