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It's an equation that gives a useful answer.


y = x2 + 4 is an equation, but the answer depends on the value of x, and has no units.


f = ma (force = mass times acceleration) will give you the numerical value of force f needed to accelerate any object of mass m, at an acceleration value of a. This is a formula.


Many people confuse the two:


Useful answer with actual dimensional values?


Formula.


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12y ago

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