• A train operates at 25000 watts

    Are you sure it wasn't 25 kWh per km, rather than 25 kW average power ?

    I found a thing that says a train's CdA is about 2.8m2, so that would mean if all 700 passengers are pedalling all the way at 200W, you could eventually get it up to about 95 mph.

  • Are you sure it wasn't 25 kWh per km, rather than 25 kW average power ?

    It was a caption in a GCSE science text book... Fermi calculation and all that.

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