Initial velocity of the object with which it goes out of the Earth's gravitational field, is called:
Correct answer: A. Escape velocity
- A. Escape velocity
- B. Threshold velocity
- C. Maximum velocity
- D. Terminal velocity
Explanation
Initial velocity of the object, with which it goes out of the Earth's gravitational field, is called 'escape velocity'.
This question appeared on the NUMS 2020 paper, which you can sit online with every answer explained.
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About Satellite Motion and Orbital Velocity
Satellite motion uses gravitational force as the centripetal force required for circular orbit, giving relationships among orbital radius, period and orbital velocity. Questions cover geostationary conditions and weightlessness, while distinguishing orbital velocity, escape velocity and the satellite's tangential speed.
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