Free falling bodies develop a state of:
Correct answer: B. Dynamic equilibrium
- A. Weight lessening
- B. Dynamic equilibrium
- C. Static equilibrium
- D. Rest
Explanation
B is the correct answer. Dynamic equilibrium occurs when an object is in motion with a constant velocity. In the case of free fall, once the object has overcome air resistance and other factors, it falls with a constant acceleration due to gravity. This constant velocity is considered dynamic equilibrium in the context of free fall.
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Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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