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Ball 1 has mass m and is moving to the right at v0 = 7.00 m/s....

Ball 1 has mass m and is moving to the right at v0 = 7.00 m/s. It collides with ball two, of mass 3m, which is at rest. After the collision ball 1 has a velocity of v1 = 4.50 m/s at an angle of ? = 30.0° relative to its original direction. Determine the magnitude and direction of the velocity, v2, of ball 2 after the collision.

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