# An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m above the ground level, how long will it take to reach minus 350 m.

Given,

Initial height =

Final depth =

Total distance the elevator has to descend = Final position - Initial position

Also,

Time the elevator takes to descend  =

Time the elevator takes to descend  =

7. An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m above the ground level, how long will it take to reach – 350 m.

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