String Slackens in a Vertical Circle | JEE 2027 Physics (English)

Free notes + solved JEE problems for this lesson: https://rankdeterminant.com/go/yt-phy... This chapter:    • Motion in a Vertical Circle | JEE Physics ...   All lessons of this unit:    • JEE 2027 Physics | Unit 4 Work, Energy and...   Where and when the string goes slack in a vertical circle, for JEE Main and Advanced: the three cases u ≤ √(2gl), √(2gl) u √(5gl) and u ≥ √(5gl), the slack point cos θ = (2gl − u²)/3gl, its height and speed, the projectile after it, why a rod, tube or bead needs only u ≥ 2√(gl), and two solved problems. Chapters 0:00 Introduction 0:31 Recap: tension at angle θ 1:44 Three cases for a string 2:35 Where the string slackens 3:31 Rods, tubes and beads: push as well as pull 4:22 Example 1: where the string slackens for u = root 3gl 5:21 Example 2: slack 30 degrees above horizontal, max height 7:02 Quick revision: three cases, slack point, rods and beads A free JEE paper every day and a full JEE Main mock every Sunday: https://rankdeterminant.com/go/yt-dai... Physics · Unit 4 · Work, Energy & Power · Chapter 5 · Motion in a Vertical Circle #VerticalCircle #JEEPhysics #JEE2027 Narrated with a computer voice.