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Deriving the centripetal acceleration formula. A body that moves in a circular motion (of radius r) at constant speed (v) is always being accelerated. The acceleration is at right angles to the direction of motion (towards the center of the circle) and of magnitude v2 / r. The direction of acceleration is deduced by symmetry arguments.
Best Answer: acceleration is expressed as a unit of distance per unit of time per unit of time. standard units are meters and seconds. For example gravity produces an acceleration of 9.8m/s/s which says the speed increases 9.8m/s every second. m/s divided by s is same as m/s^2. So standard acceleration units (that you will get working with kg and N) is m/s^2