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Universal Law of Gravitation

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Newton's universal law of gravitation is expressed mathematically as F=(Gm_(1)m_(2))/d^(2) Answer the following the question based on this law: (i) what is represented by m_(1),m_(2) and d? (ii) what is G called? (iii) what is the meaning of the world 'universal' in this law? (iv) Gravitational force between any two ordinary objects is really weak. why? (v) why you or your friend sitting near you do not move towards each other due to gravitation force of attraction? (vi) Though gravitational force is the weakest force in nature, yet it is responsible for holding our solar system.why? (vii) will gravitational force of attraction between two bodies change when they are placed same distance apart (i) on earth (ii) on moon? (viii) how will gravitational force change between two bodies when distance between them is halved? (ix) masses of each of two bodies are doubled. how should the distance between them be changed to keep the gravitational force constant?

Newton's law of gravitation is called the universal for of gravitation. Why ?

Newton's Law of Gravitation||Vector Form of Newton's Universal Gravitational Law||Binary Star System

Newtons law of gravitation

Universal gravitational constant and gravitational acceleration of the earth .

The SI unit of the universal constant of gravitation is …………. .

Which of the following represent the Newton's law of universal gravitation correctly?

Why is Newton's law of gravitational called a universal law?

Newton's law of gravitation is universal because