Question

Suppose gravity of earth suddenly becomes zero then in which direction will the moon begin to move if no other celestial body affects it?

Answer 1

1. The centripetal force provided by the earth’s gravitational force is responsible for the moon’s circular motion around the earth.
2. When the earth’s gravity suddenly disappears, the moon will start to move in a straight line in the same direction it was moving at the time.
3. At that time, the moon will be moving along the tangent to the circular orbit.