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I know this is a really basic question but I'm a little rusty on my physics, and this is just something I have been curious about. Assume you have two cars of equal weight traveling toward each other and they meet in a head-on collision. However, one car is going twice as fast as the other (let's just say 30 mph vs 60 mph); would both cars absorb the same force, or would the car going faster absorb more of the force? In other words, all other factors being equal, would the drivers both be at equal risk of injury, or would the driver in the faster car be at more risk? Also, here is one other scenario: if the driver in one car was sitting still, and the other car hit him head on at 60 mph, would the force be the same in both cars for this situation? I am assuming that it would depend on whether or not the driver in the car sitting still had his foot on the break or if it was in neutral, as this would affect the rate of his backwards acceleration. Thanks for the help!