Question: how to find percent change in momentum?
Answer: To calculate the percent change in momentum for the collision we use: %ρ = Σ m f v f − Σ m i v i Σ m i v i ∗ 100 (Eq. 1) Where the mass can be ignored because it is the same and cancels out, leaving only the vectors. Velocity is measured by using the equation distance over time (m/s).