Do you ever feel zero gravity or in other words we can say that, do you ever experience weightlessness on the planet earth ?
Of course my friend, the answer is no !!!!
When an astronaut go in space via a satellite.
They experience or feel zero gravity.
When I am talk about zero gravity, it's not mean that the astronaut body weight become zero in the satellite.
Actually you know that, what's the philosophy behind this ???
When we stand on the planet earth, our body weight exert some amount of force, so on the other side the planet earth surface also exert force in equal amount.
So because of that, when both forces come together they get nullify or in other words we can say that both these forces balance with each other and finally we not feel any kind weightlessness.
Actually in the satellite, the body weight is not get zero.
In the satellite also our body exert equal force as like on planet earth surface. But the point is that, when our body exert force on the floor of the satellite but in turns satellite does not provide normal reaction on the astronaut.
So therefore astronaut experience or we can say that they feel weightlessness or zero gravity in the satellite.
Here are the some condition, which is responsible for weightlessness or we can say zero gravity in the satellite.
i) The most common problem experienced by astronauts in the initial hours of the weightless is known as or called as space adaptation syndrome (Space sickness).
ii) The weightlessness in a satellite is independent of the height of satellite from the earth's surface.
iii) In the weightlessness or zero gravity condition , it is very hard or difficult to control the movements of our body as it tends to float freely.
iv) In the case of the weightlessness or we can say in the case of zero gravity, it is not necessary for the weight to be zero.
The weight may be more or less than it original or actual value. This weight is called as or known as apparent weight.
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