The escape velocity of an object projected from the surface of a given planet is independent of:
Correct answer: A. The mass the object
- A. The mass the object
- B. The direction of projection
- C. The mass of the planet
- D. Radius of the planet
Explanation
The escape velocity is independent of the mass of the object. This is a fundamental principle based on the conservation of energy. The escape velocity is the minimum velocity an object must attain to break free from the gravitational influence of a celestial body. The mass of the object cancels out in the escape velocity formula. Therefore, the escape velocity is the same for objects of different masses, assuming the same initial and final positions.
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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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