Given two balls of the same mass of known velocities and known direction (before and after collision) , only one of the ball is not given its velocity and direction before collision and i am supposed to find them .(adsbygoogle = window.adsbygoogle || []).push({});

As for the velocity , just take the sum be4 and after collision and evaluate the missing one .

How about the direction ? Do i draw a vector diagram ?

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# Homework Help: Elastic collision

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