An echo is heard after 0.8 , s,when a person | vedclass

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Question

(A) The distance of the person from the building is $d = 132.8 \, m$.The total distance traveled by the sound to the building and back to the person i

Vedclass · Accepted Answer

$332 \, m \, s^{-1}$

Vedclass · Answer

(A) The distance of the person from the building is $d = 132.8 \, m$.The total distance traveled by the sound to the building and back to the person is $2d = 2 	imes 132.8 = 265.6 \, m$.The time taken to hear the echo is $t = 0.8 \, s$.The speed of sound $V$ is given by the formula $V = \frac{	ext{Total distance}}{	ext{Time}} = \frac{2d}{t}$.Substituting the values: $V = \frac{265.6}{0.8} = 332 \, m \, s^{-1}$.

An echo is heard after $0.8 \, s$,when a person fires a cracker $132.8 \, m$ from a high building. Calculate the speed of sound.

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