An elevator descends into a mine shaft at the rate 7m/min . if the descends starts from 8 m above the ground level , how long will take to reach -340
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An elevator descends into a mine shaft at the rate 7m/min . if the descends starts from 8 m above the ground level , how long will take to reach -340
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Answer:
49 minutes , 42 seconde and 60 milliseconds