If earth becomes stationary losing all its motion what will be consequences?

Answer 1

The Earth is moving in several different ways.

It is spinning on its axis. If it stopped then we would all weigh a few percent more, but not more than we weigh at the north and south poles, where the Earth's spin has no effect on weight. However the side of the planet facing the sun would get much warmer and the side facing away would get much colder. That would kill all life very quickly.

It is in orbit around the sun. If it stopped then it would fall into the sun. That would kill all life very quickly.

It is in orbit around our galaxy. If it stopped then it would eventually fall into the black hole at the centre of the galaxy, but that would take a very long time; too long to worry about.

The above assumes that it doesn't slow down too quickly. The Earth's spin produces a speed of about 900mph at the surface. If it stopped spinning too quickly then it would cause devastation, but not enough to fling us all into space. It is orbiting the sun at 19 miles per second. If it stopped orbiting too quickly then that would cause even more devastation and would be enough to fling us all into space, or at least the half of us on the right side of the planet.

Answer 2

If Earth were to suddenly stop rotating, the atmosphere would continue to move at its current speed, causing devastating winds. This abrupt stop would also impact gravity, leading to widespread destruction and tsunamis due to the redistribution of water. Additionally, Earth's magnetic field, which is generated by its rotation, would weaken, exposing the planet to harmful solar radiation.