CAIE A-Level Physics A2 13.3.1 Derive Fr…tational

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Use Newton's law of gravitation to show that the gravitational field strength g at a distance r away from a point mass M is given by

g=\frac{G M}{r^{2}} .

g=F / m
$F=G M m / r^{2}$

and so
$g=\left[G M m / r^{2}\right] / m=G M / r^{2}$

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CAIE A-Level Physics A2 13.3.1 Derive From Newtons Law of Gravitation and the Definition of Gravitational Topic Practice