The apparent weight of a body of 15 kg mass placed in a spaceship orbiting the earth at a speed of 3000 m/sec at a height of 500 m will be:
Correct answer: D. Zero
- A. 176.5 N
- B. 240 N
- C. 122.5 N
- D. Zero
Explanation
D is the correct option. As the body is placed in space ship the centrifugal force experienced by it balances the gravitational pull due to Earth thus its apparent weight becomes zero .
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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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