Navy OAR Exam Prep 47, Momentum Impulse and Collisions

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - Momentum (p=mv) is a vector quantity, meaning its direction is a critical component in exam problems. - Impulse is defined as the change in momentum (Δp) and is calculated as the average force multiplied by the time of application (FΔt). - The Law of Conservation of Momentum states that the total momentum of an isolated system remains constant before and after a collision or explosion. - A key exam strategy is to first identify the 'system' and determine if external forces like friction are negligible before applying momentum conservation. - In recoil problems, the initial momentum is typically zero, meaning the final momentums of the projectile and the recoiling object must be equal in magnitude and opposite in direction. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep