A-Level Physics: Non Uniform Circular motion

YOU CAN ACCESS THE COMPLETE NOTES FOR THIS TOPIC USING THE LINK IN THE COMMENT SECTION OR VIA THE STUDY RESOURCES LINK ON MY YOUTUBE CHANNEL! ​Complete your circular motion unit with this deep dive into Non-Uniform Circular Motion! Unlike uniform circular motion, vertical loops involve changing speeds, tangential forces, and varying normal reaction forces. ​What You'll Learn in This Video: ​Principles of Non-Uniform Circular Motion: Why speed and magnitude of velocity are not constant, and why tangential force (F_t is greater than 0) and tangential acceleration (a_t greater than 0) are present. ​Vertical Circular Motion Dynamics: Analyzing an object (like a roller coaster) moving along a vertical circular track: ​At Point A (Top of Loop): Weight (W) and normal contact force (N) both act downward toward the center, yielding F_c = N + W. This is where speed and centripetal force are at their minimum. ​At Point B (Sides): Weight acts as a tangential force pulling downward to slow down or speed up motion. ​At Point C (Bottom of Loop): Normal contact force acts upward while weight acts downward, yielding F_c = N - W. This is where centripetal force, normal reaction force, and speed are at their maximum. ​Key Summary: Understanding how centripetal force and speed fluctuate continuously along a vertical path.