\(a_{ht}=\omega^2r=\left(\dfrac{2\pi}{T}\right)^2r=\left(\dfrac{2\pi}{27,32.24.3600}\right)^2.3,84.10^5.10^3=2,7.10^{-3}\left(m\backslash s^2\right)\)
\(R=3,84\cdot10^5km\)
\(T=27,32\) ngày= \(27,32\cdot24\cdot3600=2360448s\)
Tốc độ góc:
\(\omega=\dfrac{2\pi}{T}=\dfrac{2\pi}{2360448}=2,66\cdot10^{-6}\)rad/s
Gia tốc:
\(a=r\cdot\omega^2=3,84\cdot10^5\cdot1000\cdot\left(2,66\cdot10^{-6}\right)^2=2,72\cdot10^{-3}\)m/s2