3. For the central force problems, which of the following statements are true? A. The angular momentum of the particle about the centre of the force is always conserved B. The orbit of the particle is one of the trajectories: circle, ellipse, hyperbola, and parabola. C. When the energy E < 0, the trajectory is always closed. D. The motion of a particle can be three dimensional in some situations (assume classical physics).
3. For the central force problems, which of the following statements are true? A. The angular momentum of the particle about the centre of the force is always conserved B. The orbit of the particle is one of the trajectories: circle, ellipse, hyperbola, and parabola. C. When the energy E < 0, the trajectory is always closed. D. The motion of a particle can be three dimensional in some situations (assume classical physics).
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Transcribed Image Text:3. For the central force problems, which of the following statements are true?
A The angular momentum of the particle about the centre of the force is always
conserved.
B. The orbit of the particle is one of the trajectories: circle, ellipse, hyperbola,
and parabola.
C. When the energy E <0, the trajectory is always closed.
D. The motion of a particle can be three dimensional in some situations
(assume classical physics).
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