Give the universal law of gravitation ans derive their mathematical expression. Give any two incident which explain this law
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Answer:
The universal law of gravitation states that every object in the universe attract every object with a force which is directly proportional to their masses and inversely proportional to their square of distance between them....
Newton's universal law of gravitation: Every particle in the universe attracts every other particle with a force along a line joining them. ... In equation form, this is F=GmMr2 F = G mM r 2 , where F is the magnitude of the gravitational force. G is the gravitational constant, given by G = 6.673 × 10−11 N·m2/kg2.
F is the gravitational force between two bodies
m1 is the mass of one object
m2 is the mass of the second object
r is the distance between the centers of two objects
G is the Universal Gravitation Constant.
Newton proved that the force that causes, for example, an apple to fall toward the ground is the same force that causes the moon to fall around, or orbit, the Earth. This universal force also acts between the Earth and the Sun, or any other star and its satellites. Each attracts the other.
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