Question

An astronaut accidentally gets separated out of his small spaceship accelerating in interstellar space at a constant rate of 100 ms⁻². What is the acceleration of the astronaut at the instant after he is outside the spaceship? (Assume that there are no nearby starts to exert gravitational force on him)

Assertion (A) Objects in motion generally experience friction, viscous drag, etc. Reason (R) On the earth, if an object is at rest or in uniform linear motion, it is not because there are no forces acting on it but because the various external forces cancel out, i.e. add upto zero net external force.

Newton has given three laws to describe the motion of objects. According to Newton's first law, when the net external force on a body is zero, then the body is either at rest or moving with constant velocity. The first law gives the definition of inertia. Inertia means resistance to change in state of rest or motion. According to Newton's second law, the rate of change of momentum of a body is directly proportional to the external applied force on the body. The second law gives the measurement of force. According to Newton's third law, For every action, there is always equal and opposite reaction.

Give the magnitude and direction of the net force acting on