Question a billiard ball moving at 165 ms in the, Ask an Expert

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Question: A billiard ball moving at 1.65 m/s in the +x-direction collides with an identical ball initially at rest. After the collision, one ball moves off at 45 degrees above the x-axis.

Question 1: Find both balls post-collision velocities.

Please, try to give explanation for above question to find both balls post-collision velocities. Thanks.

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