1.

Two billiard balls are rolling on a flat table. Onehas velocity components v 1m/s, v, /3 m/sand the other has components v 2m/s andv, 2 m/s. If both the balls start moving from thesame point, the angle between their path is(1) 60° (2) 45 (3) 22.5° (4) 15

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