Universal Law of Gravitation
Universal Law of Gravitation
The Universal Law of Gravitation:
The law was formulated by Newton. The gravitational force of attraction between any two particles in the universe is directly proportional to the product of the masses of the particles and is inversely proportional to the square of the distance between the particles. The direction of the force is along the line joining the two particles. Let A and B be two particles of masses and
respectively. Let the distance AB = r. By the law of gravitation, the particle A attracts the particle B with a force F, such that
F ∝ (for a given separation between the particles)
Here “G” is a constant known as the universal constant of gravitation. The value of G was experimentally measured in the laboratory by Cavendish, long after Newton’s death. This value is
If earth attracts an object towards its centre with the force of 500 N, the force of attraction exerted by the object on earth is | |||
| Right Option : C | |||
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What will be the acceleration due to gravity if the mass of the planet is doubled and the radius halved? | |||
| Right Option : C | |||
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The force of gravitation between two objects of masses 1 Kg and 2 Kg separated by a distance of 100 cm, is | |||
| Right Option : A | |||
| View Explanation | |||
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