Increase distance speed quickly?

Does energy consumption increase with speed over the same distance?

  • if i cycle 5km at 20km/h do i use more energy then if i do the same distance at 10km/h

  • Answer:

    More due to higher wind drag (drag will be 4x that at 10 km/hr) Possibly more due to a lower efficiency of the body as a heat engine at 20 km/hr

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