– Why do people say that driving a car at the same speed consumes less fuel in comparison to driving it at varying speeds over long distances
In: Physics
>Why do people say that driving a car at the same speed consumes less fuel in comparison to driving it at varying speeds over long distances
If you vary your speed it means that at some point you’re braking, either with your actual brake or via engine braking. That means you’re *deliberately* converting some of that precious fuel you used to accelerate into thermal energy to decelerate you.
All that is energy that is not used to propel you and therefore unnecessary waste if you accelerate again after the braking maneuver.
Latest Answers