define gravitational constant?
Hi,
@ram_aps has given the correct value of the universal gravitational constant. Keep it up.
The Newton’s law of gravitation is the Universal law which applies everywhere in universe.
It states that every body in this universe attracts every other body with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
F = GMm/r2
Here M and m are the two masses and r is the distance between them . G is the constant known as universal gravitational constant.
If M = m = 1, r = 1, then F = G,
Therefore G is defined as:
Universal gravitational constant is equal to the force of attraction between two bodies of unit mass a unit distance apart . It is a scalar quantity. Its numerical value = 6.67*10-11Nm2/kg2.