An elevator descends into a mine shalf at the rate of 6m/min. If the descent starts from 10m above the ground level, how long will it take to reach -350?
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Answer:
1 hour
Step-by-step explanation:
1 minute = 6m
to reach= -350 m deep
starting= 10 m above
total distance= 350 + 10= 360
= 360 - 6
=60
∴ 60 minutes (1 hour) is taken to reach the shaft
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