- #1

octol

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I've tried reading the previous threads about Newtons second law and I've must say that I still don't understand why it's not just a definition. That is, if we want to it would be possible to just replace F with dp/dt everywhere in physics and make F=dp/dt unnecessary. For example we would instead have

[tex] \frac{dp}{dt} = G \frac{m_1 m_2}{r^2} [/tex]

and for electromagnetism

[tex] \frac{d\textbf{p}}{dt} = q (\textbf{E} + \textbf{v} \times \textbf{B}) [/tex]

In other words, the concept of "force" is intuitive and all, but still fundamentally redundant.

[tex] \frac{dp}{dt} = G \frac{m_1 m_2}{r^2} [/tex]

and for electromagnetism

[tex] \frac{d\textbf{p}}{dt} = q (\textbf{E} + \textbf{v} \times \textbf{B}) [/tex]

In other words, the concept of "force" is intuitive and all, but still fundamentally redundant.

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