Two masses (m_1, m_2) coupled by springs (k_1, k_2, k_3). Find normal modes.
Use angular momentum conservation (L = mr^2\dot\theta) and energy: [ E = \frac12m\dotr^2 + \fracL^22mr^2 - \frackr ] Set (u = 1/r), get Binet’s equation: [ \fracd^2ud\theta^2 + u = -\fracmL^2 u^2 F(1/u) ] For inverse-square law, solution: (u = \fracmkL^2 + A\cos(\theta - \theta_0)), i.e., conic sections. Chapter 5: Lagrangian Formulation Core concepts: Hamilton’s principle, generalized coordinates, Lagrange’s equations, constraints, cyclic coordinates. symon mechanics solutions pdf
In rotating Earth frame: ( \mathbfa \textrot = \mathbfa \textinertial - 2\boldsymbol\omega \times \mathbfv_\textrot - \boldsymbol\omega \times (\boldsymbol\omega \times \mathbfr) ). Neglect centrifugal for short-range. For vertical motion, Coriolis gives eastward acceleration: (a_x = 2\omega v_z \cos\lambda). Integrate twice. Chapter 8: Rigid Body Dynamics Core concepts: Inertia tensor, principal axes, Euler’s equations, torque-free precession. Two masses (m_1, m_2) coupled by springs (k_1, k_2, k_3)
[ \dotq = \frac\partial H\partial p = \fracpm, \quad \dotp = -\frac\partial H\partial q = -\fracdVdq ] For (V = \frac12kq^2), (\dotp = -kq). Differentiate (\dotq) to get (\ddotq = - (k/m) q). Chapter 7: Non-Inertial Reference Frames Core concepts: Rotating frames, Coriolis and centrifugal forces, Foucault pendulum. q) = p^2/2m + V(q))
Given (H(p,q) = p^2/2m + V(q)), write Hamilton’s equations and solve for harmonic oscillator.