| dt = 0... no change in time.
dv = 120 because it went from 120 to stoped.
but there is change in time, since the car didn't stop instantly, therefore you can still compute the acceleration which is very high... which is what killed these people.
thats why race car drivers wear either a neck "brace" to limit the necks range of motion, or a hans device, which does the same thing. i just use a foam neck brace because i do mostly karting, me and my dad are looking into the hans devices tho for our PCA racing... dying sucks i try to avoid it. :-/ |