Question

Q3. An elevator descends into a mine shaft
at the rate of 5m per minute, if it begins to
descend from 25m above the ground
(4 marks)
(i). What will be its position after 30
minutes?
(ii). How much time will the elevator take
to reach 5m below the ground?​

Answer 1

Answer:

WE KNOW THAT 1 HOUR = 60 MINUTES

SO 60 MINUTES × 5METRE = 300 METERS

BUT ELAVATER BECAME TO DESCEND FROM

25 METER ABOVE THE GROUND SO 300 -25 = 275 METRES AND ITS POSITION AFTER 45 MINUTES IS 45 × 25 = 1125

= 1125