Question

10. The speed of sound in air is about 330 m s-1. Express this speed in km h. How long will the sound take to travel 99 km ?​

Answer 1

Step-by-step explanation:

Given

Speed of sound in air =330m/sec

So, speed =330m/sec

Distance=99km

=99×1000

We get,

=99000m

Hence,

Time=[(99000m)/(330m/sec)]

=9900/33sec

We get,

=300sec

=5min

Hence, the time is taken by the sound to travel 99 km in 5 min