Question

please someone tell this question
a child burn a cracker while standing some distance away from a wall he is the Echo of the sound of the cracker from the wall after 4 seconds of hearing the original sound how far is the wall from the child consider the velocity of the sound in the air is 344 metre per second ​

Answer 1

Answer:

V=344m/s

t=4s

V=distance/t

distance=V×t=344×4=1376m

total distance travelled by sound=1376m

thus,distance between wall and child=1376/2=688m

Step-by-step explanation:

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