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Ón Vicipéid, an chiclipéid shaor.

Dlí dobhriste nádúir is ea an imtharraingtdomhantarraingthe. Déileálann sé leis an luasghéarú chuig a chéile idir dhá rud, ar bhonn an fhad eatarthu.

Dlí imtharraingthe Newton:

F = G m 1 m 2 r 2 {\displaystyle F=G\cdot {\frac {m_{1}\cdot m_{2}}{r^{2}}}}

San gcás seo, G = tairiseach na himtharraingthe:

G = 6.6742 10 11 N m 2 k g 2 {\displaystyle G=6.6742\cdot 10^{-11}{\frac {\mathrm {N} \cdot \mathrm {m} ^{2}}{\mathrm {kg} ^{2}}}}
Titim an chasúir agus an chleite: an spásaire David Scott (ón mhisean Apollo 15) ar an Ghealach, ag athléiriú finscéil thurgnamh domhantarraingthe Galileo. (1.38 MB, ogg/Theora format).