A particle of mass m is moving along the x-axis with speed u when it collides...
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A particle of mass m is moving along the x-axis with speed u when it collides with a particle of mass 2m initially at rest. After the collision, the first particle has come to rest, and the second particle has split into two equal-mass pieces that move at equal angles >o with the x-axis, as shown in the figure. Which of the following statements correctly describes the speeds of the two pieces? A. Each piece moves with speed v B. One of the pieces moves with speed u, the other moves with speed less than v. C. Each piece moves with speed u/2 D. One of the pieces moves with speed v/2, the other moves with speed greater than v/2. E. Each piece moves with speed greater than v/2 A particle of mass m is moving along the x-axis with speed u when it collides with a particle of mass 2m initially at rest. After the collision, the first particle has come to rest, and the second particle has split into two equal-mass pieces that move at equal angles >o with the x-axis, as shown in the figure. Which of the following statements correctly describes the speeds of the two pieces? A. Each piece moves with speed v B. One of the pieces moves with speed u, the other moves with speed less than v. C. Each piece moves with speed u/2 D. One of the pieces moves with speed v/2, the other moves with speed greater than v/2. E. Each piece moves with speed greater than v/2
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