AIIMS 2019 Physics Momentum MCQ Question

Option A is correct because it accurately describes the relationship between the rate of change of momentum (dp/dt) and force (F) as defined by Newton's second law, where F = dp/dt = nmv, with n being the mass flow rate, m the mass of the bullet, and v its velocity. Option B provides a numerical expression but lacks context and units to clarify its relevance to the question, while option C states a specific force value without showing how it relates to the momentum change, making it incomplete. Understanding that momentum (p) is defined as p = mv helps clarify that the rate of change of momentum is directly linked to the applied force, reinforcing the foundational principles of dynamics.