Britz camper danger!

[haydes55]

If you crash head on with a car similar weight and speed, you will stop as though you hit a wall. So in a head on crash, 100km/h + 100km/h =/= 200km/h.

However, a panel sticking out, going 100km/h hitting a leg going 100km/h will be at a relative speed of 200km/h because the impact will not stop the leg nor panel. Therefore they aren't acting as a wall to each other.

[Mike.Gayner]

Yes, 100 kmh + 100 kmh = 200 kmh.

BUT... you don't get that 200 kmh each.

I bring 12 beers to the party, you bring 12 beers to the party. There are 24 beers, but we can't both drink 24 beers.

I'm not a physicist, I'm happy to be proved wrong. I just thought it was interesting when I first learned about it and thought it was relevant to the conversation.

You are right, I'm an idiot.