Question

An aircraft flying at 600kilometers per hour accelerates steadily at 10 kilometers per hour per second. Taking the speed of the sound as 1100 kilometers per hour,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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