A 40-Kg Mass Has a Velocity of 4

question 34

Multiple Choice

A 4.0-kg mass has a velocity of 4.0 m/s, east when it explodes into two 2.0-kg masses. After the explosion one of the masses has a velocity of 3.0 m/s at an angle of 60° north of east. What is the magnitude of the velocity of the other mass after the explosion?

• A) 7.9 m/s
• B) 8.9 m/s
• C) 7.0 m/s
• D) 6.1 m/s
• E) 6.7 m/s

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