Sound covers a distance of 2.4 km in 7 seconds. What is the speed of the sound?
Step 1: Given
Distance = 2.4km=2.4×1000m=2400m
Time = 7seconds
Step 2: Formula
speed=distancetime---------- (1)
Step 3: Finding the speed of sound
Using equation (1)
speed=24007=342.85ms-1
Hence, the speed of sound is 342.85ms-1.
If the speed of sound in air is 340 ms−1. How far does it travel in 22 seconds?
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given speed of sound = 340 ms−1)