a) State the universal law of gravitation. Name the scientist who gave

1.	a) State the universal law of gravitation. Name the scientist who gave this law. b) Define gravitational constant. What are the units of gravitational constant?
Answer» a) The universal law of gravitation states that every body in the universe attracts every other body with a force F which is directly proportional to the product of their masses and is inversely proportional to the square of the distance between them. This law was given by Sir Isaac Newton. F = G × (m × M)/d² b) The gravitational constant G is equal to the force of gravitation which exists between the two bodies of unit masses that are kept at a unit distance from each other. The unit of gravitational constant is Nm²/kg². G = F × d²/(m × M)

a) State the universal law of gravitation. Name the scientist who gave this law. b) Define gravitational constant. What are the units of gravitational constant?

Answer»

a) The universal law of gravitation states that every body in the universe attracts every other body with a force F which is directly proportional to the product of their masses and is inversely proportional to the square of the distance between them.

This law was given by Sir Isaac Newton.

F = G × (m × M)/d²

b) The gravitational constant G is equal to the force of gravitation which exists between the two bodies of unit masses that are kept at a unit distance from each other.

The unit of gravitational constant is Nm²/kg².

G = F × d²/(m × M)

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