Question

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

write correct answer with proper statement and proper defination

Answer 1

Step-by-step explanation:

Distance descended is denoted by a negative integer,

Initial height =+10 m

Final Depth =−350 m

Total distance to be descended by the elevator =(−350)−(+10)=−360 m

Given, the time is taken by the elevator to descend −6 m=1 minute

Thus, time taken by the elevator to descend −360 m= -360/-6

------- [from the formula : speed= distance/time ]

So it takes 60 min

Answer 2

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