From d11dc4f531295b1c70bceb5cea61ce3806f55ca6 Mon Sep 17 00:00:00 2001 From: eggy Date: Sat, 21 Nov 2020 12:21:11 -0500 Subject: [PATCH] phys: gravitational force 1 --- docs/sph3u7.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/sph3u7.md b/docs/sph3u7.md index bb12ca2..ebb58b1 100644 --- a/docs/sph3u7.md +++ b/docs/sph3u7.md @@ -585,6 +585,11 @@ $$\Sigma \vec{F}_c=m\vec{a}_c$$ ## 6.2 - Newton's law of gravitation +The universal law of gravitation states that the gravitational force, $F_G$ between any two objects is attractive along the line joining them and equal to: +$$F_G=G\frac{mM}{r^2}$$ + +where $G=6.67×10^{-11} \text{ N}\cdot\text{m}^2\cdot\text{kg}^{-2}$ is Newton's constant of universal gravitation, $r$ is the distance between the objects' **centre of mass**, and $m$ and $M$ are the masses of the objects acted on and acting, respectively. + ## Resources - [IB Physics Data Booklet](/resources/g11/ib-physics-data-booklet.pdf)