If a motion is analyzed with kinematic formulas, what has to be true about the motion for the analysis to be -?

Full Question: If a motion is analyzed with kinematic formulas, what has to be true about the motion for the analysis to be valid?



Thanks in Advance!If a motion is analyzed with kinematic formulas, what has to be true about the motion for the analysis to be -?The acceleration has to be constant, in both magnitude and direction.