A boy hears a sound after 2 seconds, how far he is from the car if the speed of sound in air is 335 m/s?

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Solution

Given,
Speed of sound in air = $v = 335 m s^{- 1}$ .
Time = $t = 2 s e c$
Let the distance of the boy from the car be $d$ .
We know that, $S p e e d = \frac{D i s t a n c e}{T i m e}$ .
$\Rightarrow d = v \times t = 335 \times 2 = 670 m$ .
Thus, the boy is at a distance of 670 m from the car.

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A boy hears a sound after 2 seconds, how far he is from the car if the speed of sound in air is 335 m/s?

Given,Speed of sound in air = v=335ms−1.Time = t=2secLet the distance of the boy from the car be d.We know that, Speed=DistanceTime.⇒d=v×t=335×2=670m.Thus, the boy is at a distance of 670 m from the car.

Given,
Speed of sound in air = $v = 335 m s^{- 1}$ .
Time = $t = 2 s e c$
Let the distance of the boy from the car be $d$ .
We know that, $S p e e d = \frac{D i s t a n c e}{T i m e}$ .
$\Rightarrow d = v \times t = 335 \times 2 = 670 m$ .
Thus, the boy is at a distance of 670 m from the car.