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A worker lives at a distance of 1.32 km from the factory. If the speed of the sound in air is 3.36m/s, how much time will the sound of factory siren take to reach the worker ? |
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Answer» Time=distance/speed 1.32km = 1320 m (1km = 1000m then 1.32km = 1320m) Speed of sounf in air = 330 m/s time = 1320 / 330 time = 4 second Thus it would take 4 second for the sound of the factory siren to reach the worker. |
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