Question

an elevator decends into an mine shaft at rate of 9m/min .how long if the decent starts from 10cm above the ground level will it take to reach (-350)m ?
(write full answer)
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Answer 1

Answer:

Time taken by elevator= initial position- final position

                                      = 10-(-350)

                                      = 360m

Time taken to reach 9m= 1min

Time taken to reach 360m= 360/9

                                            =40

∴ it will take 40min to reach 360m

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