An aircraft travelling at 600 km/h accelerates steadily
at 10km/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'?

50.14 s

Explanation:

We can solve this problem by the following equation:

(1)

Where:

is the final velocity of the aircraft.

is the initial velocity of the aircraft

is the acceleration of the aircraft (taking into account 10 km/h=2.77 m/s and acceleration is \frac{2.77 m/s}{1 s})

is the time it takes to the aircraft to reach the sound barrier

Isolating from (1):

(2)

(3)

Finally:

(4)

momentum of soft ball three times less than baskey ball