https://gdpark.blog/tags/angular-momentum/Recent content in Angular Momentum on gdpark.blogHugoenThu, 25 Jun 2015 00:00:00 +0000https://gdpark.blog/posts/classical-mechanics-10-the-orbit-equation-via-energy-methods/Thu, 25 Jun 2015 00:00:00 +0000https://gdpark.blog/posts/classical-mechanics-10-the-orbit-equation-via-energy-methods/We re-derive the orbital equation using energy conservation instead of angular momentum — plus a quick vibe check on why gravitational potential energy is negative.https://gdpark.blog/posts/classical-mechanics-11-orbital-stability/Thu, 25 Jun 2015 00:00:00 +0000https://gdpark.blog/posts/classical-mechanics-11-orbital-stability/Why does Earth just keep cruising in its orbit without getting knocked off track? Turns out there’s a sneaky spring constant hiding in the radial equation of motion!https://gdpark.blog/posts/classical-mechanics-15-angular-momentum-of-a-system-of-particles/Sat, 17 Jan 2015 00:00:00 +0000https://gdpark.blog/posts/classical-mechanics-15-angular-momentum-of-a-system-of-particles/We decompose total angular momentum into an orbital piece (system as one lump at the CM) and a spin piece (particles wiggling around it) — and show why those cross terms vanish.https://gdpark.blog/posts/classical-mechanics-20-rigid-body-in-planar-motion/Mon, 19 Jan 2015 00:00:00 +0000https://gdpark.blog/posts/classical-mechanics-20-rigid-body-in-planar-motion/Fixed-axis rotation is so last chapter — now the axis itself moves, and we figure out exactly when that messy extra torque term thankfully drops to zero.https://gdpark.blog/posts/classical-mechanics-24-euler-s-equations-of-motion-for-a-rigid-body/Thu, 22 Jan 2015 00:00:00 +0000https://gdpark.blog/posts/classical-mechanics-24-euler-s-equations-of-motion-for-a-rigid-body/We finally dig into full-on 3D rigid body rotation — inertial frames, rotating frames, and how Euler’s equations of motion fall out of it all. lol.