1.State universal law of gravitation. Find mathematical
expression for it.
Answers
Answer:
Newton’s Law of Universal Gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.
Explanation:
Newton’s conclusion about the magnitude of gravitational forces is summarized symbolically as
F=Gm1m2r2
where,
F is the gravitational force between bodies
m1 is the mass of one of the objects
m2 is the mass of the second object
r is the distance between the centres of two objects
G is the universal gravitational constant
The constant proportionality (G) in the above equation is known as the universal gravitation constant. The precise value of G was experimentally determined by Henry Cavendish in the century after Newton’s death. The value of G is found to be G = 6.673 x 10-11 N m2/kg2.
Answer:
The force is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. In equation form, this is F=GmMr2 F = G mM r 2 , where F is the magnitude of the gravitational force.