two buildings are 3.3km apart . a girl is fired a gun the time diferance between the flash seing of gun and its sound is 10s. find the speed of sound in air
Given that the difference between the flash and sound is 10 seconds so the time taken by the sound to travel to the other building will be 10 seconds.
Now, distance = 3.3km = 3300m
Hence ,
Speed of sound,v = distance / time = 3300/10
= 330 m/s