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What is difference between G and g in physics?

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G =  Universal Gravitational constant. It's value is always constant for the whole Universe. 

g = Acceleration due to gravity. It's value may vary with height and the planets.

Posted by

Deependra Verma

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G is constant for always in universe but g can vary. g is gravitational force on freely falling body and G is the force of attraction between two object having mass m and separated at a distance.

Posted by

Prachileena pradhan

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