A Puck with a Mass M₁ = 50

question 5

Multiple Choice

A puck with a mass m₁ = 50.0 g moving at 1.00 m/s approaches a stationary puck with a mass m₂ = 100 g on an air table and they undergo a two-dimensional elastic collision. After the collision, both pucks have identical speeds, but travel in different directions. What is the angle between the original and final paths of m₁?

• A) 30.0°
• B) 60.0°
• C) 90.0°
• D) 120°
• E) 150°

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