König's theorem

Method — Split kinetic energy into motion of the centre of mass plus internal motion.

Present in chapters

06 · 07

Linked atoms

6 linked atoms.

07 Dinamica rotazionale

• Case 3: elastic collision with rod free on a rail
• Problem — König’s theorem for kinetic energy
• When to use L = Iω and Ecin = ½Iω²

13 Forza di Coulomb ed elettrostatica

• The centre of mass ignores internal forces
• Problem — Two charges launched upward
• Problem — The two gunslingers