Question 18 Vf Hint 1 Hint 2 A Billiard Ball Labeled 1 Moving Horizontally Strikes Another Billiard Ball Labeled 2 A 1 (196.9 KiB) Viewed 11 times
Question 18 Vf Hint 1 Hint 2 A Billiard Ball Labeled 1 Moving Horizontally Strikes Another Billiard Ball Labeled 2 A 2 (118.07 KiB) Viewed 11 times
Question 18 Vf Hint 1 Hint 2 A billiard ball, labeled 1, moving horizontally strikes another billiard ball, labeled 2, at rest. Before impact, ball 1 was moving at a speed of 2.8 m/s, and after impact it is moving at 0.4 m/s at 50° from the original direction. If the two balls have equal masses of 300 g, what is the velocity of the ball 2 after impact? Express the velocity as a magnitude at an angle below the horizontal. = m/s at Submit Question > 0 below the horizontal Question 6 A 2 × 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.55 m by a large spring bumper at the end of its track. What is the spring constant k of the spring? k = N/m > Submit Question
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