Question

An aircraft travelling at 600km/h accelerates steadily at 10km/h per second . Taking the speed of sound as 1100km/h at the aircraft's altitude, how long will it take to reach the'sound barrier'?

Answer 1

See the attachment....

Answer 2

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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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