a man inside an artificial satellite feels weightlessness because the force of attraction due to earth is
1)zero at the centre
2)balanced by force of attraction due to moon
3)equal to centripetal force
4)non-effective due to particular design of the planet
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on considering the artificial satellite as the frame of reference, there is a psedo force act against the centripetal force(gravitational force) so net force on astronaut is zero so he feels weightlessness
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