Question

an elevator descends into a mine shaft at the rate of 6 metre per minute if it is the distant starts from 10 metre above ground level how long will it take to reach minus 350 with step by step explanation​

Answer 1

Answer:

1 hour

Explanation:

So if the elevator is above 10 m we will add 350 and 10 so elevator will have to go 360.

Speed of elevator=6m / min

Time it will take to reach 360 m= 360÷6

=)60

So the answer is 60 minutes or 1 hour

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Answer 2

Answer:

Explanation:

The speed is 6 meter/minute [Given]. --1

Total height of the mine= 350+10=360 --2

From 1 and 2, we get

360/6 = 60 or 1 hour