The physics of mobility: an interesting comparison of road, rail, and air travel
Aerotime
DECEMBER 6, 2024
Energy is always required for acceleration, to overcome air drag, as well as rolling and friction resistance of wheels on road and rail, and for “lifting work”, i.e., working against gravity. The mass to be moved (in kilograms, kg) plays a decisive role both in the energy required for acceleration and for the lifting work.
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