Answer:
The velocity from the personne flying over the island is [tex]1.66*10^8m/s[/tex]
Explanation:
The island experiences a contraction of length, because the person who measures it, sees as if the island moves with a speed v. Relativistic Law, for an object with a velocity v and a length at rest Lo, and a length L at a velocity v :
[tex]L=L_{0}{\sqrt {1-v^{2}/c^{2}[/tex]
[tex]v=c*\sqrt{1-(L/L_{0})^2}=3*10^8*\sqrt{1-(10/12)^2}=1.66*10^8m/s[/tex]
