Question

38. State Newton's universal law of gravitation and write mathematicalexpression for it. Also show that acceleration due to gravity of an object
is independent of its mass.​

Answer 1

Answer: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.

The acceleration due to gravity of any planet of mass 'M' and radius 'R' is given by g=R2GM where, G is the universal gravitational constant . So , the value of 'g' dependent on the mass of the earth but independent of mass of the body.

Explanation: