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CBSE Class 9 Answered

Please Define G (Universal gravitational constant) more accureately. As I am very much confused.
Asked by | 17 Sep, 2011, 12:00: AM
answered-by-expert Expert Answer
The gravitational constant, denoted G, is an empirical physical constant involved in the calculation of the gravitational attraction between objects with mass. It appears in Newton's law of universal gravitation and in Einstein's theory of general relativity. It is also known as the universal gravitational constant, Newton's constant.
According to the law of universal gravitation, the attractive force (F) between two bodies is proportional to the product of their masses (m and M), and inversely proportional to the square of the distance (r) between them:
 
F = G (mM)/R2
 
The constant of proportionality, G, is the gravitational constant.
Answered by | 18 Sep, 2011, 01:45: PM

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