Kinematics is the study of moving things. In the this picture there is a shoe rolling on the table. Kinematics is different from 2D kinematics because the object is only moving on one axis. In this case the shoe is only moving on the x axis. Because this object is moving on the x axis gravity would not be the acceleration, instead it would be how fast the object is moving forward. This is important in life because if we if the acceleration was fast enough the shoe would have had fallen, although it is not a far drop in life it is important.
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