The ‘kei’ cars and trucks are growing in popularity in the U.S. But many states have explicitly banned them in recent years. A bill at the statehouse would allow them on Colorado roads.
He said force, not kinetic energy. They’re probably treating the acceleration term in F=ma as proportional velocity, which strikes me as naive, but it makes the math easier and it’s correct if the error bars are big enough… Functionally you’re comparing momentum at that point, but I imagine you can find some American truck built to evade CAFE standards that has a 4-1/3:1 weight ratio with some version of the Civic.
He said force, not kinetic energy. They’re probably treating the acceleration term in F=ma as proportional velocity, which strikes me as naive, but it makes the math easier and it’s correct if the error bars are big enough… Functionally you’re comparing momentum at that point, but I imagine you can find some American truck built to evade CAFE standards that has a 4-1/3:1 weight ratio with some version of the Civic.