An elevator decends into a mine shaft at the rate of 6 meters per minute .If the descent starts from 10 m above the ground level, how long will it take to reach -350 m
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Answer:
61 minutes
Step-by-step explanation:
Rate at which elevator decends into a mine shaft = 6m/min (Given)
Thus, in every minute, it goes down by 6m.
Rate of descent = 10m (Given)
Thus, we have 10m above the ground and 350 m below the ground
Therefore, the total distance = 20 + 350
= 370 m
Time taken = 370/6
= 61 minutes or 1 hour 1 minutes
Thus, the total time taken for elevator to reach 350m will be 61 minutes.
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