physics question

the concorde is the fastest airline used for commercial service.it can cruise 1450 mile per hour (about two time speed of sound ) what is in m/ sec (1)644.4m/sec (2)80 m/sec (3)40m/sec (4)none

Omkar
20 Mar
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3 Answers

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Shailendra
02 Feb

a)644.4m/sec might be the ans. as The Hint given in the bracket tell us that it is 2times the speed of sound means it becomes nearby 340×2=680 and remaining may be the resistance opposing it.. wht is the ans Dear Frnd.?