Choose the correct statement from the following:
Assertion: An astronaut in a satellite feels weightlessness.
Reason: The gravitational force acting on the satellite is zero.

The correct answer is: The assertion is correct, but the reason is wrong.

The centrifugal force in the satellite frame of reference balances the gravitational force acting on the astronaut and hence, normal reaction on the astronaut is zero. Therefore, an astronaut feels weightlessness in a satellite as he feels a zero normal reaction because both the satellite and astronaut are under free fall.

Hence, both assertion and reason and correct, and reason is the correct explanation for the assertion.