AIIMS 2018 Physics Newton's Laws of Motion MCQ Question

When the block moves up with a constant velocity $v$ m/s, the net force acting on it is zero due to Newton's first law, meaning the upward force $F$ must balance the downward gravitational force $mg$. Thus, if we consider additional forces like friction or tension, the effective force required to maintain constant velocity can be expressed as $F = \frac{mg}{3}$ when accounting for these factors. Options (A), (B), and (D) suggest incorrect relationships between $F$ and $mg$ that do not satisfy the equilibrium condition for constant velocity.