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The concorde is the fastest airlines use...

The concorde is the fastest airlines used for commercial service. It can cruise at 1450 mile per hour (about two times the speed of sound or in other words, mach 2). What is it in m/s?

A

`644.4m//s`

B

`80m//s`

C

`40m//s`

D

none of these

Text Solution

Verified by Experts

(a) `n_(1)u_(1)=n_(2)u_(2)`
`:. n_(2)=(n_(1)u_(1))/(u_(2))=(1450"mile")/(m//"hour")=(1450 s "mile")/(m "hour")`
`=(1450s xx 1.6 km)/(10^(-3)km60xx60s)=644.4m//s`
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