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Physics
Classical Physics
Mechanics
Exploring the Logical/Geometrical Explanation of Escape Velocity
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[QUOTE="kuruman, post: 6345649, member: 192687"] It's an algebraic necessity, not coincidence, if you want to know the speed required so that an object leaves the Earth's surface and reaches infinity with zero kinetic energy. The total energy for an orbiting satellite is ##E =KE+PE=-\frac{1}{2}PE##. To have escape velocity from the surface you need the total energy to be zero. That means doubling the kinetic energy of the bound orbit. To do that you must double ##v^2## which means multiplying ##v## by ##\sqrt{2}##. [/QUOTE]
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Forums
Physics
Classical Physics
Mechanics
Exploring the Logical/Geometrical Explanation of Escape Velocity
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