How does centripetal acceleration of Mars around the sun compare to the centripetal acceleration of the Earth?

Question

Claire Anctil · Accepted Answer

The centripetal acceleration of Earth, Mars and the other planets are all the same, zero.

All of the planets follow geodesics, which are the spacetime equivalent of straight lines in the spacetime that has been distorted by the Sun. According to Einstein's general theory of relativity, gravity is not a force but rather a distortion of spacetime caused by the mass of the Sun. There is no such thing as centripetal force or acceleration for objects in orbit. Newton's theories are the source of the ideas of gravitational force and centripetal force. Centripetal force only applies to spinning objects, like a weight on a string. Einstein claimed that acceleration and gravity are identical to the observer. However, there is no such thing as gravitational force or centripetal force that keeps an object in orbit.

John Alexander · Answer

1 in 21.6. The proportion is ratio of (mass)X(inverse-square of distance from the Sun).

The NASA planetary fact sheet provided the data used.

Ariana Acosta · Answer

undefined The centripetal acceleration of Mars around the Sun is lower than that of Earth due to Mars's greater distance from the Sun and its slower orbital speed.