Modelling Motion (Angular Speed etc.)

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SUMMARY

The discussion focuses on demonstrating that motion lies in a plane by utilizing the relationship between position vector \( \mathbf{x} \) and its derivative \( \dot{\mathbf{x}} \), which are always perpendicular. The user has successfully derived a second-order linear ordinary differential equation (ODE) and found the general solution, applying initial conditions to establish the perpendicularity to the vector \( \mathbf{b} \). The next steps involve clarifying the geometric implications of these relationships in the context of motion modeling.

PREREQUISITES
  • Understanding of vector calculus and motion in physics
  • Familiarity with ordinary differential equations (ODEs)
  • Knowledge of angular speed and its mathematical representation
  • Basic principles of mechanics and kinematics
NEXT STEPS
  • Research the geometric interpretation of motion in a plane
  • Study the derivation and solutions of second-order linear ODEs
  • Explore the concepts of angular speed and its applications in motion analysis
  • Learn about the implications of perpendicular vectors in motion dynamics
USEFUL FOR

Students and professionals in physics, particularly those focusing on mechanics and motion analysis, as well as mathematicians interested in the application of differential equations in modeling physical phenomena.

Ted123
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[PLAIN]http://img198.imageshack.us/img198/6579/mechanics2.jpg

I've done the first bit (showing [itex]x[/itex] and [itex]\dot{x}[/itex] are always perpendicular) but how do I show that the motion lies in a plane? Also, how do I do the final part?
 
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That should say I've already shown [itex]x[/itex] and [itex]\dot{x}[/itex] are always perpendicular to [itex]b[/itex] . I did this by deriving a 2nd order linear ODE, finding the general solution and then applying the initial conditions.

I'm just stuck on how to proceed with the next parts of the question. Can anyone help?
 

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