Calculate the magnitude of the gravitational force between Earth and Moon

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

Calculate the magnitude of the gravitational force between Earth and Moon, given: • Mass of Earth =6.0×1024 kg= 6.0\times10^{24}\,\text{kg} • Mass of Moon =7.4×1022 kg= 7.4\times10^{22}\,\text{kg} • Distance between their centres =3.84×108 m= 3.84\times10^{8}\,\text{m} Take G=6.67×10−11 N m2/kg2G = 6.67\times10^{-11}\,\text{N\,m}^2\text{/kg}^2. (a) 2.0×1021 N2.0\times10^{21}\,\text{N} (b) 7.7×1020 N7.7\times10^{20}\,\text{N} (c) 2.0×1020 N2.0\times10^{20}\,\text{N} (d) 2.0×1019 N2.0\times10^{19}\,\text{N}

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