eponey
Well-Known Member
You cannot ignore the other stuff as they have a demonstrable effect. Just ask any one who has run into unexpected headwinds that tanked their efficiency and range. Air density is a real factor, as are road conditions. They aren't negligible.
E = (F_drag + F_rolling + F_wind) * d + mgh, where:
E: is the total energy required
F_drag: is the aerodynamic drag force, calculated as: 0.5 * air density * drag coefficient * frontal area * velocity^2
F_rolling: is the rolling resistance force, calculated as: rolling resistance coefficient * vehicle weight
F_wind: is the force due to wind, calculated based on wind speed and vehicle velocity
d: is the distance traveled
m: is the vehicle mass
g: is the acceleration due to gravity
h: is the change in height
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