Question

An elevator descends into a mine shaft at the rate
of 10 m/min. If the descent starts from 100 m
above the ground level, how long will it take to
reach -350 m?
(1) 10 min
(2) 20 min
(3) 1 hour
(4) 45 min
ns102 Exe.pos​

Answer 1

Answer:

4) OPTION

45 MINUTES

Step-by-step explanation:

Answer 2

Answer:

it will take 45 min to reach -350 m

Step-by-step explanation:

The total distance it has to cover = 100+350m

=450m

It takes 1 min to descend 10m

So it will take 45 min to descend 450m