An astronaut inside an earth satellite experience weightlessness because :
(i) he is falling freely
(ii) no external force is acting on him
(iii) no reaction is exerted by floor of the satellite
(iv) he is far away from the earth surface

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(i, iii)

(ii, iii)

(i, ii)

(i, iv)

answer is D.

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Detailed Solution

As astronaut's acceleration = g, so he is falling freely. Also no reaction exerted by the floor of the satellite since pseudo force acting on the astronaut balances the gravitatinal force of attraction acting on the astronaut .

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