Two 1 kg balls collide elastically in 2D. Ball 1 moves south…

Questions

Twо 1 kg bаlls cоllide elаsticаlly in 2D. Ball 1 mоves south at 1.5 m/s, and Ball 2 moves east at 2 m/s. What is the total momentum, in kg*m/s, in the x-direction (east-west) after the collision?

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