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प्रश्न
Explain why an astronaut in an orbiting satellite has a feeling of weightlessness.
Discuss the weightlessness experienced by an astronaut in an orbiting satellite.
उत्तर
When an astronaut is in an orbiting satellite, the astronaut and satellite are attracted towards the centre of the Earth and both will fall towards the Earth with the same acceleration. This acceleration is the same as ‘g’ at the satellite. Thus, the astronaut is unable to exert weight on the floor of the satellite. Because of this, the satellite does not provide a normal reaction on the astronaut, and hence, the astronaut feels weightlessness.
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संबंधित प्रश्न
If the Earth completely loses its gravity, then for any body _______.
(A) both mass and weight become zero.
(B) neither mass nor weight become zero.
(C) weight becomes zero but not the mass.
(D) mass becomes zero but not the weight.
An astronaut inside a satellite is in a state of weightlessness because of the effect of
An astronaut inside a small spaceship orbiting around the earth cannot detect gravity. If the space station orbiting around the earth has a large size, can he hope to detect gravity?
