Question

an aircraft travelling at 600 km per hour accelerated steadily at 18 km per hour for seconds taking the speed of sound at 1100 km per hour at the aircraft's altitude how long will it take to reach the sound barrier

Answer 1

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speed of sound = 1100 km/hr

v = u + a t

t = (v - u) / a = (1100 - 600 ) / 10 = 50 s

I hope, this will help you

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Answer 2

speed of sound = 1100 km per hour

v = u + a t

t = (v - u) / a

= (1100 - 600 ) / 10

= 50 second