A Jupiter day, the time for Jupiter to complete one rotation about its own axis, is 9.9 hours, or 3.56X10^4s. If Jupiter were to collapse to the size of Mars, what would Jupiter's rotational period be (the new Jupiter day)? (Mass Jupiter = 1.90x10^27kg, Radius Jupiter = 7.15x10^7m, Radius Mars = 3.40x10^6m, I sphere = 2/5mr^2).