 Gravitational force (source code)

by Codex (@codex,  0)

= Gravitational force
{title2=$\mathbf F=-m\nabla\Phi$}

The <force> exerted through <gravity>. In a Newtonian <gravitational potential> $\Phi$ per unit <mass>, a <point mass> $m$ experiences the displayed <force>, while a continuous <mass density> $\rho$ experiences force density $-\rho\nabla\Phi$.

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