Question

The elevator descends at the rate of 5 m/min. If the descent starts from 50 m above the ground
level, find the time taken by the elevator to reach - 250 m.​

Answer 1

EXPLANATION.

• GIVEN

elevator descends at the rate of = 5 m/min

if descent starts from 50 m above the ground level.

To find time taken by the elevator to reach -250 m.

according to the question,

Total distance elevator has travel =

initial position - Final position

50 - ( - 250) = 300 m

Now,

elevator descends at the rate of = 5 m/min

elevator travel 5 m in = 1 minutes

elevator travel 1 m in = 1/5 minutes

Elevator travel 300 m in =

1 / 5 X 300 minutes = 60 minutes = 1 hour

Therefore,

Time taken by the elevator to reach

-250 m = 1 hour

Answer 2

Answer:

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