A 3-kg object moving to the right on a frictionless, horizontal surface with a speed of 2 m/s collides head-on and sticks to a 2-kg object that is initially moving to the left with a speed of 4 m/s. After the collision, which statement is true?

Question

Answer

The momentum of the system is 14 kg · m/s

Answer

The kinetic energy of the system is greater than 5 J but less than 20 J

Answer

The momentum of the system is less than the momentum of the system before the collision

Answer

The momentum of the system is -2 kg · m/s

Answer

The kinetic energy of the system is 20 J

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A 3-kg object moving to the right on a frictionless, horizontal surface with a s...

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