|
Just to add another perspective, the units of watt*hr/mi are newtons, which is force. You are measuring how much force is acting against the car at a given speed. Higher speed means more force pushing against the car.
(watt) * hr / (mi) =
(newton*meter/sec) * 3600sec / (1609.344meter) =
2.237 newton
------------------------------------------------------------------------
One newton is 0.225 pounds of force, so a 400watt*hr/mi car would need a guy pushing it with
2.2237*0.225*400 = 200 pounds
of force to keep it moving at the rate it's going.
|