The escape velocity corresponds to _ energy gained by the body, which carries it to an infinite distance from the surface of earth.
Correct answer: C. Initial kinetic
- A. Total
- B. Potential
- C. Initial kinetic
- D. None of these
Explanation
Escape velocity Is the velocity required by a body to get out of the earth's gravitational pull and leave the earth without further propulsion, which means no further acceleration is required by the object to leave the earth after the object has attained escape velocity. The initial kinetic energy which associates with movement allows the object to cover an infinite distance from the earth's surface.
This question appeared on the UHS MDCAT 2008 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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