Ignition vs. Roll start?

[sbergman27]

Originally Posted by Tamago

save gas while slamming into the car in front of you when you have no power brakes? yeah that sounds like a hypermiler.

Momentum would be conserved.* So while the collision would hurt your fuel economy slightly, the guy you rear end should see a slightly better number on his next fill up.

-Steve

* Minus a little energy lost to heat during the collision itself.

[Tamago]

Originally Posted by sbergman27

Momentum would be conserved.* So while the collision would hurt your fuel economy slightly, the guy you rear end should see a slightly better number on his next fill up.

-Steve

* Minus a little energy lost to heat during the collision itself.

i am literally rolling on the floor laughing. thank you for your perfect explanation of "conservation of energy" law.