Here's a breakdown of key contributors:
* Rene Descartes (1644): Descartes was the first to propose a clear statement of the law, although he didn't use the term "momentum." He stated that the "quantity of motion" in a system remains constant.
* Isaac Newton (1687): Newton, in his *Principia Mathematica*, refined Descartes' ideas and formulated the law of conservation of momentum in its modern form. He showed that the total momentum of a system remains constant in the absence of external forces.
* Gottfried Wilhelm Leibniz (1686): Leibniz also contributed to the development of the concept of momentum and its conservation. He introduced the term "vis viva" (living force), which is related to kinetic energy.
Therefore, it's more accurate to say that the law of conservation of momentum emerged from the work of multiple scientists over time.