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A hockey puck (1) of mass 180 g is shot east at a speed of 8.80...

A hockey puck (1) of mass 180 g is shot east at a speed of 8.80 m/s. It strikes a second puck (2), initially at rest, of mass 198 g. As a result of the collision, the first puck (1) is deflected at an angle of 30° south of east and the second puck (2) moves at an angle of 50° north of east. What is the magnitude of the velocity of puck (1) after the collision? m/s

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