Escape Velocity: Difference between revisions
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Escape velocity is defined as the minimum velocity required for an object to escape the gravitational force of a large object. The sum of an object's kinetic energy and its Gravitational potential energy is equal to zero. The gravitational potential energy is negative due to the fact that kinetic energy is always positive. The velocity of the object will be be zero at infinite distance from the centre of gravity. There is no net force on an object as it escapes and zero acceleration is perceived. | |||
==The Main Idea== | ==The Main Idea== | ||
The formula for escape velocity at a certain distance from a body is calculated by the formula <ref>{{cite book|last=Khatri, Poudel, Gautam|first=M.K. , P.R. , A.K.|title=Principles of Physics|year=2010|publisher=Ayam Publication|location=Kathmandu|isbn=9789937903844|pages=170, 171}}</ref> | |||
:<math>v_e = \sqrt{\frac{2GM}{r}},</math> | |||
State, in your own words, the main idea for this topic | State, in your own words, the main idea for this topic | ||
Revision as of 15:29, 5 December 2015
created by Varun Rajagopal
Escape velocity is defined as the minimum velocity required for an object to escape the gravitational force of a large object. The sum of an object's kinetic energy and its Gravitational potential energy is equal to zero. The gravitational potential energy is negative due to the fact that kinetic energy is always positive. The velocity of the object will be be zero at infinite distance from the centre of gravity. There is no net force on an object as it escapes and zero acceleration is perceived.
The Main Idea
The formula for escape velocity at a certain distance from a body is calculated by the formula [1]
- [math]\displaystyle{ v_e = \sqrt{\frac{2GM}{r}}, }[/math]
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