What will happen if rotation of Earth will get reverse? [duplicate]

Today one question pop up into my mind... What will happen if Earth spinning about its axis and around the sun will start moving in reverse direction... Whether it will affect us... What are all things will change?

marked as duplicate by AccidentalFourierTransform, ZeroTheHero, Qmechanic♦May 4 '18 at 14:30

On a circular orbit the centripetal force $F_Z$ is equal to the gravitational force $F_G$, so we have $F_Z-F_G = 0$. Since $F\propto v^2$, reducing the velocity of earth will result in a negative net force, so earth would spiral in towards the sun. So if we decelerate too slowly, earth might get too close to the sun, again leading to death and doom.