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A man standing 300m away from the wall sounds a whistle. The echo from...

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Question 557
A
540.0ms-1
B
333.3ms-1
C
270.0ms-1
D
166.7ms-1
E
83.3ms-1
Explanation
V = \(\frac{2x}{t} = \frac{2 \times 300}{1.8}\)


= 333.33ms-1

Correct option: B

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