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  1. #1
    Recumbent Ninja
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    Bike math equation

    Ok, for some reason I can't seem to figure out how to find speed given time and known distance. Obviously if you maintain 20 miles an hour, then you cover 10 miles in a half hour.

    But what if you've done, say, 12.4 miles in 30.1 minutes? How do you find the speed?

  2. #2
    The Site Administrator: Currently at home recovering from a couple of strokes,please contact my assistnt admins for forum issues Tom Stormcrowe's Avatar
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    12.4/30.1*60=25.31561462 Mph
    on light duty due to illness; please contact my assistants for forum issues. They are Siu Blue Wind, or CbadRider or the other 3 star folk. I am currently at home recovering from a couple of strokes. I am making good progress, happily.


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  3. #3
    Senior Member skiahh's Avatar
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    rate * time = distance

    Therefore, rate = distance/time, as Tom calculated for you.
    www.teamnavycycling.org
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  4. #4
    Senior Member
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    12.4*2?

    srsly mate....

  5. #5
    Tail End Charlie Ritehsedad's Avatar
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    Distance/time=speed
    Your units have to match, so if you use 30.1 minutes it has to be converted into hours (the way Tom did) by dividing by 60 - 30.1 minutes = .501667 hours.

    So much easier with a cyclometer installed...
    Why isn't 11 pronounced onety one?

  6. #6
    Senior Member Mr. Gear Jammer's Avatar
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    Quote Originally Posted by aikigreg View Post
    Ok, for some reason I can't seem to figure out how to find speed given time and known distance. Obviously if you maintain 20 miles an hour, then you cover 10 miles in a half hour.

    But what if you've done, say, 12.4 miles in 30.1 minutes? How do you find the speed?
    24.65 MPH, cant tell you how i came up with the answer becuase i figured it out in my head.
    Tropical pole vaulting is the shiznit.

  7. #7
    Retro-nerd georgiaboy's Avatar
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    Forget all the above answers. Just play dumb and input your numbers into Foo everyday.

    Would you like a dream with that?

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