Question

if earth rotates then why dont we rotate?if earth revolves around the sun then mercury and venus also revolves around the sun then why cant we say that earth revolves around the venus or venus revolves the earth?

Answer 1

Answer:

Earth moves very fast. Earth rotates around speed of 16,00 KM/h, and orbits around the Sun at a speed of 107,000 KM/h. So, don't get any rotation because these speeds are constant.

Because, Sun always in the middle of all the planets who revolve around. As per the structure Mercury, Venus and Earth revolve around the Sun, Sun in the middle of all. Before earth Mercury and Venus also revolve around Sun but we say earth revolve around the Sun not revolve around the Venus and Mercury coz Venus and Mercury already revolve around the Sun. Then, we say Earth revolve around the Sun instead of saying Earth revolve around the Venus or Mercury.