The weight of a body is minimum at:
Correct answer: A. The equator
- A. The equator
- B. The poles
- C. A place in between pole and equator
- D. None of these
Explanation
W= mg where g= acceleration due to gravity. At the equator, the weight (mg) of a body is minimum because the Earth's rotation generates a centrifugal force that partially offsets the gravitational force This reduces the effective acceleration due to gravity (g), resulting in a smaller (mg) value compared to other latitudes.
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About Gravitation
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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