I am having difficulties to understand why in mathematics when calculating line integrals using gradient theorem we use F=grad(U), and in physics it is always F=-grad(U)? It seems important to me, because I may end up getting answer with opposite sign.(adsbygoogle = window.adsbygoogle || []).push({});

Is it somehow related to Newton's third law?

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# Gradient theorem, why F=-grad(U) ?

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