The Uncrushable flies from Io to Jupiter in a few hours. The distance from Io to Jupiter is 628,300,000km. We'll go with a high end of 3 hours, a low end of 10 hours and a mid end of 6 hours..Larklight said:
(Low end)
T = 628,300,000km/10h
= 29087963/340.29
= Mach 51287.9538
(Mid end)
T = 628,300,000km/6h
= 29087963/340.29
= Mach 85479.923
(High end)
T = 628,300,000km/3h
= 58175925.9/340.29
= Mach 170959.846
Final Results
The Uncrushable flies to Jupiter (low end) = Mach 51287.954
The Uncrushable flies to Jupiter (mid end) = Mach 85479.923
The Uncrushable flies to Jupiter (high end) = Mach 170959.846