Question

1) State universal law of gravitation.express it mathematically

Answer 1

Universal law of gravitation: The universal law of gravitation states that every object in the universe attracts every other object with a force called the gravitational force. The force acting between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres. Derivation: For two objects of masses m1 and m2 and the distance between them r, the force (F) of attraction acting between them is given by the universal law of gravitation as:

Answer 2

Here is your answer mate..✌✌

The universal law of gravitation states that there is a force of attraction between two masses separated by some distance. The gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Mathematically,

F = G m1 m2 / r^2

Where, G is the universal gravitational constant, m1 and m1 are the masses separated by a distance r.

The Universal Law of Gravitation is applied in the study of motion of objects in the presence of gravitational field. Motion of astronomical bodies are calculated and also predicted using this law.

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