1.An elevator descends into a mine underground 6m every minute. If the descent starts from 10m above the ground level, then how long will it take to reach 350m below the ground?
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If the descent starts from 10 m above the ground level, how long will it take to reach – 350 m. Thus, the elevator will reach -350 m from 10 m in 1 hour.
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Answered by
1
Answer:
Solution:
Total distance covered by an elevator = 10 - (-350) m
= 10 + 350
= 360 m
Time taken to cover a distance of 6 m = 1 min
Therefore, time taken to cover 360 m = 360 ÷ 6
= 60 minutes
= 1 hour (1 hour = 60 minutes)
Thus, the elevator will reach -350 m from 10 m in 1 hour.
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