Question

explain what is ment by g=GM/R^2, where the symbols have their usual meanings

Answer 1

$the \: given \: equation \: i.e. \\ \\ \: \: \: \: \: \: \: \: \: g \: = \: G \times \frac{m}{ {r}^{2} } \\ \\ \\ \: where \: G\: = \: gravitationl \: constant \\ \: \: \: \: m \: \ \: \:: \: = \: mass \: of \: \: planet\\ \\ \: \: \: \: r \: = \: \: radius \: of \: planet \\ \\ \\ g \: is \: the \: acceleration \: due \: to \: gravity \\ which \: means \: the \: total \: acceleration \: that \\ \: is \: gained \: by \: a \: body \: when \: it \: is \: performing \\ \: free \: fall. \\ \\ it \: is \: used \: to \: determine \: the \: weight \\ \: of \: a \: body \: on \: that \: planet \: when \\ \: it \: is \: multiplied \: by \: mass \: of \: body. \\ \\ weight \: of \: body \: \\ \: \: \: \: \: \: \: \: \: \: \: = \: mass \: of \: body \times \: g \\ \\ the \: value \: of \: acceleration \: due \: to \: \\ gravity \: differs \: from \: place \: to \: place. \\ \\ \infty \: maximum \: value \: at = \: poles \\ \\ \infty \: minimum \: value \: at \: = \: equator$