WAEC Physics 2023 Paper

Concept:Impulse equals change in momentum, and the same force acting for the same time gives equal impulse to both bodies.Explanation:Impulse is given by $F \Delta t$.Since both bodies experience the same force $F$ for the same time $\Delta t$, the impulse is identical for both.Impulse is equal to the change in momentum: $F \Delta t = \Delta p$.Assuming both bodies start from rest, their final momenta are equal.The lighter body will acquire a higher velocity, but the momentum of the lighter body equals the momentum of the massive body.Answer:D. momenta of both bodies remain the same.