Question

A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. He fires a gun and, after a while, hears three echoes. The second echo arrives 1.76 s after the first, and the third echo arrives 1.38 s after the second. Assuming that the speed of sound is 343 m/s and that there are no reflections of sound from the ground, find the distance (in m) between the cliffs.

Answer 1

Distance=538.51m

Step-by-step explanation:

The echo is heard after covering double distance .

Therefore 2d=(t1+t2)×speed.

2d={(1.76+1.38)×343}

2d=743.02

d=1077.02÷2

=538.51m