# The mass of the earth is 6 x 10'24 kg and that of moon is 7.4 x 10'30kg. If the distance between the earth and the moon is 3.84 x10'5km,calculate the force exerted by the earth on the moon. G= 6.7 x 10'-11 Nm'2/kg2

$F=G\frac{{m}_{1}{m}_{2}}{{r}^{2}}\phantom{\rule{0ex}{0ex}}F=6.7×{10}^{-11}\frac{6×{10}^{24}×7.4×{10}^{30}}{\left(3.84×{10}^{8}{\right)}^{2}}\phantom{\rule{0ex}{0ex}}F=2×{10}^{28}N$

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