The parking brake on a 1700 kg Cadillac has failed, and it is rolling slowly, at 1 mph, toward a group of small children. Seeing the situation, you realize you have just enough time to drive your 900 kg Volkswagen head-on into the Cadillac and save the children. With what speed should you impact the Cadillac to bring it to a halt?
With what speed should you impact the 1700kg Cadillac to bring it to a halt?
- Thread starter Alex
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