A. 540.0ms−¹
B. 333.3ms−¹
C. 270.0ms−¹
D. 166.7ms−¹
E. 83.3ms−¹
Correct Answer:
Option B – 333.3ms−¹
Explanation
V = 2x/t=2×300/1.8
= 333.33ms−¹
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![A girl standing some distance from the cliff claps her hands and hears the echo 0.8s later. calculate her distance from the cliff. [speed of sound in air = 320 ms‾¹]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A girl standing some distance from the cliff claps her hands and hears the echo 0.8s later. calculate her distance from the cliff. [speed of sound in air = 320 ms‾¹]")
