Q. 324.6( 21 Votes )

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

Answer :

According to the Question,We have:-

Initial velocity, u = 600 km/h (Given)

Final velocity, v = 1100 km/h(Given)

Acceleration = 10 km/h/s

From relation, v = u+at,

On rearranging the terms, we get, v - u = at



∴ t = 50 seconds

Hence it will take the aircraft 50 seconds to reach the "sound barrier"

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Champ Quiz | Motion under gravity46 mins
About Acceleration50 mins
Velocity Time GraphFREE Class
Third Equation of Motion36 mins
Learning Second Equation of motion41 mins
NCERT | Motion - Part 153 mins
Second Equation of Motion48 mins
Understanding Motion60 mins
Interactive Quiz - Motion29 mins
Learn The Use of Equations of Motion37 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses