A person stands at a distance of $680\text{ meters}$ from a factory siren. If the speed of sound in air is…
A person stands at a distance of $680\text{ meters}$ from a factory siren. If the speed of sound in air is $340\text{ m/s}$, how long will it take for the sound of the siren to reach the person?
$0.5\text{ seconds}$
$1.0\text{ second}$
$2.0\text{ seconds}$
$4.0\text{ seconds}$
Solution
Time taken = $\text{Distance} / \text{Speed} = 680 / 340 = 2.0\text{ seconds}$.