Question

Answer these questions​

Answer 1

So total distance = 10 + 350 m = 360 m
And speed = 6m/min
So time taken = distance/speed = 360/6 = 60
So it will take 60 mins or 1 hr

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Answer 2

Starting position of mine shaft is = 10m above ground

but,

it moves in opposite direction so it travels the distance (-350 m ) below the ground.

Total distance covered by mine shaft = 10m - (-350m)

= 10 + 350

= 360m

Now, taken to cover a distance of 6m by it = 1 minute

Time taken to cover a distance of 1m by it =1/6 min

Therefore, tie taken to a cover a distance of 360m = 1/6×360=60 min

60 minutes = 1 hour

thus, in one hour the mine shraft reaches = 350 below the ground.