Assertion A: An astronaut inside a massive sp | vedclass

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(D) The gravitational force acting on an astronaut inside an orbiting spaceship is $F = G \frac{Mm}{r^2}$. This force is finite and non-zero. However,

Vedclass · Accepted Answer

$(A)$ is not true but $(R)$ is true

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(D) The gravitational force acting on an astronaut inside an orbiting spaceship is $F = G \frac{Mm}{r^2}$. This force is finite and non-zero. However,the astronaut is in a state of free fall along with the spaceship. In the non-inertial frame of the spaceship,the gravitational force is balanced by the centrifugal force,resulting in a net force of zero (weightlessness). Therefore,the astronaut does not 'experience' any weight or gravitational force. Thus,Assertion $(A)$ is false. Reason $(R)$ is a standard physical fact: the gravitational force between the Earth and the spaceship provides the necessary centripetal force for orbital motion. Thus,Reason $(R)$ is true.

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