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Physics Fundamentals BLOG for K12

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gravitational force

orbital velocity satellite

Orbital Velocity of Satellite-derivation of 3 expressions

Orbital Velocity of Satellite Definition of Orbital velocity: Orbital Velocity of a satellite is the minimum velocity it has to maintain to continue its circular motion in its orbit. We know for a circular motion to continue, a force called centripetal force is required to work upon the object in circular motion. And this force

physicsteacher blog

Universal Law of Gravitation

Universal Law of Gravitation Newton’s Law of Universal Gravitation: Have you heard of the story about Sir Isaac Newton and a falling apple which was pulled toward earth by the force of gravity? An apparently unimportant event led to Newton’s formation of a fundamental law of nature (Law of universal gravitation or Law of Gravitation)