A 0015-Kg Marble Moving to the Right at 0

question 21

Multiple Choice

A 0.015-kg marble moving to the right at 0.40 m/s has a head-on, elastic collision with a 0.045-kg marble sitting at rest on a smooth, level surface. Which of the following are the correct magnitudes and directions of the velocities of the two marbles after the collision? 0.015 kg marble 0.045 kg marble

• A)0.15 m/s, left 0.25 m/s, right
• B)0.10 m/s, right 0.30 m/s, right
• C)zero m/s 0.25 m/s, right
• D)0.20 m/s, left 0.20 m/s, right
• E)0.40 m/s, left zero m/s

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