• Conservation of energy when u get stuck
  • Take care of approximation errors, remember the alpha problem
  • leave force direction when calculating work with integration to the dot product

IMORTANT: review the slide proofs

NOTE: in under damped oscillations the amplitude decays with the same ration every cycle

  • When given two things of the same type, maybe it can be solved by getting the ratio between them If critical damping specified in a then b is also critically damped

  • Acceleration always has constant sign in the same half

  • only tangentienal acceleration is used in newtons law of moton because it is what does work

  • derivative of linear velocity gives tangential accelration

  • identical springs then k is equal

  • Stable equilibrium is when U is min, Unstable equilibrium is when U is max