Navy OAR Exam Prep 25, Distance Rate Time and Relative Motion

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: - To calculate relative speed, add the rates for objects moving in opposite directions and subtract for objects moving in the same direction. - A vessel's true speed is its speed in still water plus the current's speed when moving with it (downstream), and minus the current's speed when moving against it (upstream). - How to find a boat's speed in still water by averaging its downstream and upstream speeds: (Downstream Speed + Upstream Speed) / 2. - To avoid the common trap of averaging rates for average speed; the correct formula is always Total Distance / Total Time. - A simple mnemonic for relative motion: "Same direction, subtract; Opposite ways, add the rates." 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