Halliday, Resnick & Walker — Gravitation: Problem Problem_86

An object lying on Earth’s equator is accelerated (a) toward the center of Earth because Earth rotates, (b) toward the Sun because Earth revolves around the Sun in an almost circular orbit, and (c) toward the center of our galaxy because the Sun moves around the galactic center. For the latter, the period is \(2.5 \times 10^8 \text{ y}\) and the radius is \(2.2 \times 10^{20} \text{ m}\). Calculate these three accelerations as multiples of \(g = 9.8 \text{ m/s}^2\).