APFIVE Conservation of Linear Momentum Principle
A 2.0 kg object traveling at 4.0 m/s collides with a 6.0 kg object that is initially at rest. After the collision, the 2.0 kg object moves in the opposite direction at a speed of 1.0 m/s. Which physical principle best explains why the 6.0 kg object must be in motion after the collision?
A
Conservation of mechanical energy
B
Conservation of linear momentum
C
Newton’s third law
D
Work-energy theorem
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