1.

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 ?

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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