How does earth rotate and revolve. As per First Law of motion it should be acted upon by some force now as there are no force acted upoon the heavenly bobies they continue to revolve. But what was the initial force which produced motion in the hevenly
How Does earth rotate and revolve?
Earth is acted upon by the gravitational force of Sun and other planets. The gravitational force of sun provides the centripetal acceleration required for revolution.
The initial force is all unified force that set out the expansion of the universe and called superforce.