JCooper
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 Nov 17 awarded Popular Question Oct 21 awarded Popular Question Jul 2 awarded Curious Apr 25 comment How important is it, really, to clean vacuum parts? Haven't we all done that? Hah! Apr 18 revised Closed-form equation for orientation and angular velocity over time Added a little detail. Apr 18 asked Closed-form equation for orientation and angular velocity over time Jan 3 comment Can any physical rigid body be represented by an ellipsoid with the same angular dynamics? Perfect. Thank-you. Jan 3 accepted Can any physical rigid body be represented by an ellipsoid with the same angular dynamics? Jan 3 awarded Yearling Jan 3 asked Can any physical rigid body be represented by an ellipsoid with the same angular dynamics? Dec 4 awarded Caucus Dec 4 awarded Constituent Jul 13 accepted The Double Integrator: Matching velocity and position as quickly as possible with only a limited amount of force available Jan 24 comment The Double Integrator: Matching velocity and position as quickly as possible with only a limited amount of force available Perfect. Thanks. It seems unintuitive that a bang-bang strategy would be optimal, but what you've illustrated makes sense. It's also interesting how the critical damping co-efficient of $\zeta=1$ is built into the configuration space as a slope of $\pm 1$. Jan 22 answered how to represent the effect of linking rigid-bodies together? Jan 19 asked The Double Integrator: Matching velocity and position as quickly as possible with only a limited amount of force available Dec 31 awarded Teacher Dec 31 answered Physics simulation software to perform this very specific experiment Dec 24 accepted Converting angular velocity to linear velocity through friction Dec 24 comment Converting angular velocity to linear velocity through friction Conservation of energy seems right. This should work for what I need (although I'll need it in 3d; so $\omega r$ needs to be $\omega \times r$ which means that I've got to do a little bit of playing to solve for $v_1$). Thanks.