A ship travelling towards a cliff receives the echo of its whistle after 3.5 seconds.
PHYSICS
JAMB 2020
A ship travelling towards a cliff receives the echo of its whistle after 3.5 seconds. A short while later, it receives the echo after 2.5 seconds. If the speed of sound in air under the prevalling condition is 250ms -1, how much closer is the ship to the cliff?
- A. 10m
- B. 350m
- C. 175m
- D. 125m
Correct Answer: D. 125m
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