the reason why mass matters is because if you have more mass, let’s say twice the mass of a sedan for example, you transfer significantly more energy into the smaller vehicle, and the smaller vehicle transfers significantly less energy into the large vehicle.
go find a video of a freight training crashing into a car or something at a crossing. There’s a reason freight trains don’t have crumple zones.
the reason why mass matters is because if you have more mass, let’s say twice the mass of a sedan for example, you transfer significantly more energy into the smaller vehicle, and the smaller vehicle transfers significantly less energy into the large vehicle.
go find a video of a freight training crashing into a car or something at a crossing. There’s a reason freight trains don’t have crumple zones.