February 27, 2017

Homework Help: Physics

Posted by Michelle on Friday, April 25, 2014 at 12:30pm.

Your teenage kid finally gets his drivers license. He takes off in your brand new car that weighs 2000kg at 47m/s when he hits a parked semi that weighs 40000kg. They plow forward in a perfectly in elastic fashion in the same direction. What is the velocity of the wreck?

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