Only initial kinetic and potential energies determine the launch angle of a projectile motion from a height with the longest range
詳細情報
| 日時 | 2026年01月31日 23:00 - 23:30 |
|---|---|
| テーマ | Lightning Talk (1st) |
| 発表者 | Chamonix_MBさん |
| 集会名 | VRChat International Physics Community |
| 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
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VRChat International Physics Community
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…