A 50-Kg Mass with an Initial Velocity of 4

question 38

Multiple Choice

A 5.0-kg mass with an initial velocity of 4.0 m/s, east collides with a 4.0-kg mass with an initial velocity of 3.0 m/s, west. After the collision the 5.0-kg mass has a velocity of 1.2 m/s, south. What is the magnitude of the velocity of the 4.0-kg mass after the collision?

• A) 2.0 m/s
• B) 1.5 m/s
• C) 1.0 m/s
• D) 2.5 m/s
• E) 3.0 m/s

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