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  1. initial time (ti)
  2. final time (tf)
  3. initial position (xi)
  4. final position (xf)
  5. initial velocity (vi)
  6. final velocity (vf)
  7. acceleration (constant) a
Note

Remeber that you will usually have the freedom to define the initial time and the initial position by setting up a coordinate system.

Looking at the four equations, you can see that each is specialized to deal with problems involving specific combinations of these unknowns.

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