A boy fires a gun and another boy at a distance hear a sound of a fire 2.5 second after seeing the flash if speed of sound in air is 340 metre per second find distance between the boys
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Answer:
the distance between them is 850m
Explanation:
we consider that the light take almost no time to reach to another boy
now coming to sound,
it took 2.5s to reach by a speed of 340m/s
therefore the distance between them is
distance= speed x time
= 340x 2.5
= 850m
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