Speed of Particles in Pure Rolling Motion | Rigid Body Dynamics | NEET & JEE Physics

Welcome to Physics Vedaa! In this crisp 13-minute lecture, we break down one of the most vital concepts in Rigid Body Dynamics: The Speed of Particles in Pure Rolling Motion.

Many students get confused when combining translational motion (v = Rω) and rotational motion. In this video, you will learn how to easily calculate the net velocity of any particle on a rolling wheel—whether it's at the top, bottom, or anywhere on the rim—using vector addition and the Instantaneous Center of Rotation (ICOR) method.

This concept is a favorite for competitive exams like NEET and JEE. Watch till the end to master the shortcuts and never make a calculation mistake again!

📌 What we cover in this video:
• What is Pure Rolling? (No slipping condition)
• Calculating velocity at the Topmost point, Center of Mass, and Contact point.
• General formula for the speed of a particle at any angle θ.
• Quick NEET/JEE numerical practice.

⏱️ Timestamps:
00:00 - Introduction & The Condition for Pure Rolling
02:15 - Combining Translation ($v_{cm}$) and Rotation ($\omega$)
04:50 - Velocity at the Top, Center, and Bottom Points
08:10 - General Formula for Speed at any Point ($v = 2v_{cm}\sin(\theta/2)$)
11:05 - Quick NEET/JEE Shortcut & Common Mistakes
12:45 - Summary & Practice Question for Homework

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Видео Speed of Particles in Pure Rolling Motion | Rigid Body Dynamics | NEET & JEE Physics канала Physics Vedaa