I don’t think that works that way. Take a GPS and try it in a vehicle.
It’s two measurements, gps speed, and vertical gain. Your distance travelled will be far more than the vertical gain in elevation. Depending on the length of the climb vs the actual elevation change, the error in the speed would be minimal. Without knowing the actual numbers to do the math the error would be well below .5% range for a snowmobile, therefore GPS speed is still pretty accurate.
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It’s two measurements, gps speed, and vertical gain. Your distance travelled will be far more than the vertical gain in elevation. Depending on the length of the climb vs the actual elevation change, the error in the speed would be minimal. Without knowing the actual numbers to do the math the error would be well below .5% range for a snowmobile, therefore GPS speed is still pretty accurate.
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