Question

Example 5. If we represent the distance above the ground by a positive integer and that below
the ground by a negative integer, then answer the following:
(1) An elevator descends into a mine shaft at the rate of 4 metre per minute. What will be
its position after one hour?
(ii) If it begins to descend from 10 m above the ground, what will be its position after
40 minutes from the ground? meaning of it and tell the correct answer he/ she will be marked as branliest no spam the answer will be reported​

Answer 1

Answer:

(1).After one our its position of = 4*60 = 240 m , (ii).If it  begins to descend from 10 m above the ground its position after 40 minutes from the ground = (4*40)-10 = 160-10 = 150 m

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