define Newton's gravitational law.
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define Newton's gravitational law.
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Newton's gravitational law states that everbody attracts every other body in the universe with a force .
This force is directly proprtional to the product of masses ( m1 ,m 2 ) and inversely proportional to the square of distance between them .
here G is gravitional constant whose value is fixed i.e
G = 6.67 * 10 ^- 11 N m^2 kg ^ - 2