Which equation best describes the law of conservation of momentum?

pi = pf

pi > pf

pi < pf

pi + pf = 0

The appropriate response is p initial = p final, first one. Newton's support is a case of the Law of Conservation of Momentum. Authorized from iStockPhoto. thing. Law of preservation of force is characterized as a standard in material science that says that a few sections in a confined framework staying unfaltering and constant after some time notwithstanding when others are moving.