Equations of Motion

  • If the acceleration is constant, rectilinear motion can be calculated by the equations of motion (a.k.a. SUVAT equations)


  • (click here for derivation)
  • Under uniform acceleration, velocity varies linearly with time so
    • v-t graphs are always straight lines.


  • Under uniform acceleration, displacement varies quadratically with time so
    • s-t graphs are always parabolic curves.


  • Under uniform acceleration, velocity has a square-root relationship with displacement so
    • v-s graphs are always square-root curves.




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