The speed of sound in air is 330 ms⁻¹ and in steel 5000 ms⁻¹.
(i) How much distance will it cover in 9 seconds in steel ?
(ii) How much time will it take to cover the same distance in air?
Answers
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Answer:
(i) 45000 m
(ii) 136.3 sec.
Explanation:
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Distance covered in steel = 45 Km
Time taken to cover 45 Km in air = 2 minutes 16 seconds
Explanation:
Speed of sound in air = 330 ms–1
Speed of sound in steel = 5000 ms–1
(i) Distance covered in 9s in steel.
Distance = speed * time
= 5000 * 9
= 45,000 m
= 45 Km
(ii) Time taken to cover same distance in air.
Time = Distance / speed
= 45000 / 330
= 136.36 seconds
= 2 minutes 16 seconds (approximately)
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