The Earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the Earth. The escape velocity of a body from this platform is fve, where v. is its escape velocity from the surface of the Earth. The value of f is (a) V2 (b) (c) 1 (d)

The Earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the Earth. The escape velocity of a body from this platform is fve, where v. is its escape velocity from the surface of the Earth. The value of f is (a) V2 (b) (c) 1 (d)

Stars and Galaxies (MindTap Course List)

10th Edition

ISBN:9781337399944

Author:Michael A. Seeds

Publisher:Michael A. Seeds

Chapter5: Gravity

Section: Chapter Questions

Problem 2P

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.

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12. The Earth is assumed to be a sphere of radius R. A
platform is arranged at a height R from the surface of the
Earth. The escape velocity of a body from this platform is
fve, where v. is its escape velocity from the surface of the
Earth. The value of f is
1
(b)
1
(c)
3
(a) /2
(d)
1/2

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