Lực hướng tâm:
\(F_{ht}=G\cdot\dfrac{m_1\cdot m_2}{R^2}=6,67\cdot10^{-11}\cdot\dfrac{6\cdot10^{24}\cdot7,37\cdot10^{22}}{\left(3,84\cdot10^8\right)^2}=2\cdot10^{20}N\)
Tốc độ dài:
\(F_{ht}=\dfrac{1}{2}mv^2=\dfrac{1}{2}\cdot7,37\cdot10^{22}\cdot v^2=2\cdot10^{20}\)
\(\Rightarrow v\approx0,074\)m/s