The Earth is 93 million miles (mi) from the Sun and its period of revolution is 1 year = 3.15 *10⁷ s. What is the acceleration of the Earth in its orbit about the Sun?

Question

Quizplus · Accepted Answer

The centripetal acceleration is calculated using the formula a = v^2/r, where v is the orbital speed and r is the radius of the orbit. The Earth's orbital speed can be found using v = 2πr/T, where T is the period. Substituting the given values and solving gives the acceleration as approximately 3.7 x 10^-6 mi/s^2.

The Earth Is 93 Million Miles (Mi) from the Sun