Question

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

Answer 1

Answer:

ok

Explanation:

Initial velocity, u = 600km/h

Final velocity, v = 1100km/h

Acceleration = 10km/h/s=600km/h2

see attachment

Answer 2

Answer:

Initial velocity u = 600km/h

final velocity v = 1100km/h

acceleration = 10km/h/s = 600 km/h

a = (v-u)/t

t = (v-u)/a

t = ( 1100‐600)/600

t = 500/600 = 5/6hr = 50 sec.

hope it helps you