Supermen!

Classical Mechanics Level 2

Why does the astronauts in the ISS (International Space Station) fell no gravity and float around like super man...

Pic credits: ESA

Its a vacuum The gravity of earth cancels out with that of moon & sun The gravity there is so low The ISS is on a free fall around the earth

Krishna Kanth Dasari by Krishna Kanth Dasari , 29, India

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2 solutions

Hariharan Gandhi
Sep 29, 2015

We are able to stand on the surface of the earth because the Normal Reaction Force exerted by the Earth balances the Weight of the body.In the International Space Station though,there exists no such force.Both the Space Station and the astronauts are accelerated towards the Earth with the same acceleration.

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Actually the gravity there is almost as it is on earth.

g on earth's surface is 9.81 m/s/s

g on ISS is about 9.2 m/s/s (approx)

The reason is that they are on a free fall around the earth. This is just like parachute divers fell no gravity on free fall...

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