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07/01/2021 3:35 pm
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What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 10m)
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07/01/2021 3:39 pm
The gravitational force between the earth and 1 kg object on us surface is given by
\(F = \frac{GM_eM_{body}}{R{_e^2}}\)
= \(\frac{6.67\times 10^{-11} \times 6 \times 10^{24} \times 1}{(6.4 \times 10^6)^2}\)
This gives, F = 9.8 N