So the only factor that matters when comparing the two centripetal accelerations is the radius of their orbits. Therefore Mars has a larger centripetal acceleration because its radius is larger. Is that right?
so: m_{earth}a = \frac{G*m_{Earth}*m_{Sun}}{r^2}
divide by m_{Earth}: a = \frac{G*m_{Sun}}{r_{Earth's Orbit}^2}
Therefore for Mars the equation will be: a = \frac{G*m_{Sun}}{r_{Mars' Orbit}^2}
Homework Statement
Is the centripetal acceleration of Mars in its orbit around the Sun larger or smaller than the centripetal acceleration of the Earth?
Homework Equations
I assume that the relevant equation is a=v^{2}/r since you are trying to compare the centripetal accelerations of Mars...