Question

A worker lives at a distance of 1.32 km from the factory .If the speed of sound in air be 3.30m/s, how much time will be sound of factory siren take to reach the worker?​

Answer 1

Distance between the worker's house and the source of sound = 1.32km = 1320 m

Speed of sound = 330m/s

Speed = distance / time

Time taken = Distance /speed

= 1320 / 330

= 4 s

Therefore,the sound of the factory siren will take 4s to reach the worker.

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Answer 2

Answer:

The ans is 4 because

Distance between the worker's house and the source of sound = 1.32km = 1320 m

Speed of sound = 330m/s

Speed = distance / time

Time taken = Distance /speed

= 1320 / 330

=4

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Explanation: