Lightning Talk (No.1) - Only Initial Kinetic & Potential Energies Determine the Launch Angle of Longest-Range Projectile
詳細情報
| 日時 | 2026年01月31日 23:00 - 23:30 |
|---|---|
| テーマ | Only Initial Kinetic & Potential Energies Determine the Launch Angle of Longest-Range Projectile |
| 発表者 | Chamonix_MBさん |
| 集会名 | VRChat International Physical Society |
| 発表資料 |
Abstract
Consider throwing a ball from a top of a cliff at an launch angle of θ. When the horizontal distance of the travel takes maximum, θ satisfies tan θ = √{ v₀² / ( v₀² + 2gh ) } = √{ K / ( K+P ) } with initial kinetic energy K = (1/2) mv₀² and initial potential energy P = mgh, where m is the mass of the ball, v₀ is the initial velocity, h is the cliff height, and g is the gravity acceleration. Interestingly, we can write θ in terms of K and P alone, and the logic can be explained without calculus. This talk is based on the following document written in Japanese: Kudo, T., Hara, N. & Shimoda, M. (2013). doi: 10.50835/kumako.5.0_116
VRChat International Physical Societyの他の発表もチェック！
VRChat International Physical Societyの開催情報・参加方法
VRChat International Physical Society
開催日: 2026年01月31日
開催時間: 23:00 - 23:30
開催曜日: 土曜日開催周期: 隔週
Let's talk about physics! We hold LTs (Lightning Talks) hosted by group members about once every two weeks. Feel free to join us, and enjoy the meetings! There's absolutely no need to worry about n…