Asked by Hehehe
                a reconnaissance plane flies 416km away from its base at 414 m/s then flies back to its base at 621 m/s . whats its average speed? answer in units of m/s
            
            
        Answers
                    Answered by
            oobleck
            
    2 / (1/414 + 1/621) = 496.8 m/s
    
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