Question

    Supersonic speed is speed greater than the speed of

    sound (in air at sea level) that is to say around______ miles/hour. 
    A 760 Correct Answer Incorrect Answer
    B 860 Correct Answer Incorrect Answer
    C 960 Correct Answer Incorrect Answer
    D 1060 Correct Answer Incorrect Answer

    Solution

    Supersonic speed is approximately 343.2 m/s, 1,125 ft/s, 768 mph, 667 knots, or 1,235 km/h. 

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