Question

what is source for gravitational force?????????????

Answer 1

The Earth, itself, is the source for gravitational force. The hot, molten rock inside the core of the earth makes a magnetic field around it(the earth) which's force or pull that ensures all the objects of the earth are well stuck to it; a ball, if kicked, always come down to the ground only because of gravitational force. This is the gravitational force of the earth.

Answer 2

the earth is the source and that discover was made by newton but the sun holds the earth and the rest of planets in the solar system with its gravity