Answer to Question #100522 in Mechanics | Relativity for Nazmoon Nahar

Question

What's the difference between g and G

Answer 1

The gravitational constant denoted by the letter G, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's general theory of relativity. The value of G is 6.67430×10⁻¹¹ m³kg⁻¹s⁻²

The standard acceleration due to gravity (or standard acceleration of free fall), sometimes abbreviated as standard gravity, denoted by ɡ, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is defined by standard as 9.80665 m/s²