A 5 kg steel ball moving 8 m/s, collides off center with a stationary 2 kg ball and then the 2 kg ball moves off at 10 m/s, find the angle the 5 kg ball moves off 8. degrees at degrees, and the angle the 2 kg ball moves off at

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!