Work, energy, momentum, and oscillation

Momentum and impulse

p = mv  ·  J = FΔt = Δp

p momentum, J impulse, F average force, Δt contact time

Watch forMomentum is conserved in every collision; kinetic energy only in elastic ones. Longer Δt means smaller force.

Apply it · 4 questions

  1. Recoil and conservation of momentumMotion, forces, and energy · set 5 · hard
  2. Is the collision elastic?Motion, forces, and energy · set 5 · hard
  3. Perfectly inelastic collisionMotion, forces, and energy · set 4 · easy
  4. Average force from impulseMotion, forces, and energy · set 4 · easy