In planetary motion:
Correct answer: B. The total angular momentum remains constant
- A. The angular speed remains constant
- B. The total angular momentum remains constant
- C. The linear speed remains constant
- D. Neither the angular momentum nor angular speed remains constant
Explanation
Statement B is close to being true. According to Kepler's laws, the total angular momentum of a planet remains constant during its motion around the Sun. The law of conservation of angular momentum states that in the absence of external torques, the total angular momentum of a system remains constant.
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