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A satellite is revolving around the earth with a kinetic energy E. The minimum addition of kinetic energy needed to make it escape from its orbit is
Options
(a) 2E
(b) 2/E
(c) E/2
(d) E
Correct Answer:
E
Explanation:
The potential energy of a satellite is negative and twice its kinetic energy. If it has to escape, it has to be given an additional energy to nullify the energy due to attraction.
E is the energy to be given so that the satellite can escape.
Related Questions: - During an adiabatic process, the cube of the pressure is found to be inversely
- A particle of mass m is projected with velocity v making an angle of 45° with
- If energy(E), velocity(V) and time(T) are chosen as fundamental quantities,
- When volume of a system is increased two times and temperature is decreased
- Which of the following is a vector quantity?
Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- During an adiabatic process, the cube of the pressure is found to be inversely
- A particle of mass m is projected with velocity v making an angle of 45° with
- If energy(E), velocity(V) and time(T) are chosen as fundamental quantities,
- When volume of a system is increased two times and temperature is decreased
- Which of the following is a vector quantity?
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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