Because everything is in free fall, traveling at the same speed: the space station, the person & everything else.
Its the same thing as being in a falling elevator. The elevator is falling at the same speed as the person. If there was a scale in that falling elevator, the person would be weightless. Unlike the satellite which can fall around the earth for many, many years, the elevator ride to the basement will not last long.
It the same as being on an airplane that suddenly dives at the same acceleration as gravity (9.8m/s/s). You, the plane, and everything in the plane is falling at the same rate. If there was a scale there, you would weigh nothing, until the plane pulled out of its dive.
Knowing the acceleration of gravity on the moon, Mars etc..., can be recreated in such a plane. They only need to dive at such an acceleration that it cancels the right amount of Earth's gravity. So the Moon's gravity is 1/6th that of Earth, or, things fall at 1.6m/s/s. So the plane would only dive to remove 8.2m/s/s of Earth's gravity, leaving 1.6m/s/s. The same can be done for simulating Mars' gravity, etc.... This allows Moon walkers to practice walking techniques while wearing their spacesuits.
Its almost the same as being in a roller coaster going down a big hill. The cart, seat and you are all falling at the same speed, you feel ~weightless (briefly).
for the circular motion of a satellite a centripetal force is requid. these force is supplied by the gravitional force between the earth and satellite this is trueall objects in the satellite is zero ie, the object in a satellite feel weightlessness
Floating in space feels weightless and liberating. Without gravity pulling you down, you experience a sensation of freedom and effortless movement. It can also feel disorienting because there is no up or down.
Without the effects of gravity the person will be weightless.
They don't. The moon has gravity but not as much as earth so they feel that they have less weight. In outer space a person would feel weightless because no gravity that they could notice is acting upon them.
The statement that astronauts on the Moon are weightless is true.
When someone is freefalling in thee air thus they become weightless
for the circular motion of a satellite a centripetal force is requid. these force is supplied by the gravitional force between the earth and satellite this is trueall objects in the satellite is zero ie, the object in a satellite feel weightlessness
They actually are weightless, due to the fact there is no gravity in space. However a sky-diver would say he/she feels weightless, but they are experiencing free-fall.
because both the astronaut and the satellite is attracted towards the center of the earth
Technically, a satellite in free-fall (and orbit is a special case of "free-fall") is effectively weightless. What we call weight is the force of the RESISTANCE to gravity; I "weigh" 220 pounds because I an standing on the Earth. The satellite has its own mass, and this can be anything from "tiny" to "enormous".
It feels that way because momentum is making your body feel as if it is going upwards or downwards. That's were the blood is going.
The person feels like an outsider of a group.
No. It is light -- not heavy, but it is not weightless.
A shadow is something that is weightless but can be seen.
Floating in space feels weightless and liberating. Without gravity pulling you down, you experience a sensation of freedom and effortless movement. It can also feel disorienting because there is no up or down.
The satellite image taker?
Weight is mass time gravity. If there is no gravity effect on someone in space, they are considered "weightless". They continue to have the same amount of mass whether they are in space or on Earth.