Forces At The Top Of A Vertical Circle
This animation shows a ball on a string moving in a vertical circle, focusing on the highest point of the loop. Vectors illustrate how both gravity (mg) and string tension (T) point downward toward the center, combining to supply the centripetal force mv^2/r. It highlights the critical speed condition where tension can drop to zero, useful for physics students studying circular motion and energy conservation.
Narrated · 16:9 · Preview before teaching · automatic layout checks do not establish subject accuracy
The prompt that made it
Scene 3: Physics Forces at the Top (Critical Speed)Visual Prompt: 3D diagram animation of a ball attached to a string rotating vertically. At the highest point, a red vector arrow labelled 'mg' points straight down towards the center. A pink vector arrow labelled 'T' (Tension) also points down towards the center. A blue vector arrow labelled 'a' shows inward acceleration. Text / Voiceover: "At the top of a vertical circle, both gravity (mg) and string tension (T) pull downward toward the center: $$\frac{m v^2}{r} = T + m g$$
Make the next one in this series
- Show the forces at the bottom of the vertical circle where tension and gravity oppose
- Animate what happens when speed drops below the critical value at the top
- Graph tension in the string as a function of angle around the vertical circle
