Question

an aircraft travelling at the speed of 600 km / h accelerated 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

Explanation:

Initial velocity, u = 600km/h

Final velocity, v = 1100km/h

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

2

From relation,

a=

t

(v−u)

t=

a

(v−u)

t=

600

(1100−600)

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