Why do people in space float to a ceartain limit if there is no gravitational force then people should continue to fly or float upwardsBut this does not happens they keep on floating on a ceartain hei?

Answer 1

First it is a common misconception that things "float" in space. Actually everything in space is in a freefall, and when things freefall they appear to be weightless. There is no way to escape gravity, and anything that mass mass has gravity, even if you were a millin lightyears away Earths gravity would still affect you it would just be very very weak . Astronuts in the space shuttle "float" bcease they are so high up that they are falling around the Earth.

Answer 2

Despite the absence of gravity, objects and people in space appear to float because they are in a state of constant free fall around the Earth. They don't float upwards indefinitely because they are following the curved path of the Earth's gravitational pull, resulting in a stable orbit at a certain height above the surface. This balance between the inertia of their motion and the gravitational force keeps them at a specific altitude without flying off into space.