The speed can be obtained as 3 * 10^8 m/s.
The term speed is the ratio of the distance covered to the time taken. Given that both the distance covered and the time taken are both given in this problem we can now go ahead and try to solve the problem.
Distance covered = 11.12 km or 11.2 * 10^3 m
Time taken = 37.1 μs or 37.1 * 10^-6 s
Thus the speed = 11.2 * 10^3 m/ 37.1 * 10^-6 s
= 3 * 10^8 m/s
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