Episode Details

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