Question

Asked Nov 7, 2019

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the two identetical freight cars roll without friction towards each ohter, in oppoite directions, on a level track,. One car roll at 3.3 m/s and the other rolls at 2.2 m/s/. After the cars collied, they couple and roll together with a speed of ___ m/s

Step 1

According to the conservation of mometnum we know thatmomentum b...

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