Define $1\, J$ of work.

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(N/A) $1\, J$ is defined as the amount of work done when a force of $1\, N$ displaces an object through a distance of $1\, m$ in the direction of the applied force.
Mathematically,$W = F \times s$,where $W = 1\, J$,$F = 1\, N$,and $s = 1\, m$.

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