An elevator descends into a mine shaft at the rate of 12 m/min. If the

1.	An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it plaess
Answer» EXPLANATION. An elevator DESCENDS into a mine shaft at the rate = 12m/min. if the descends starts from 20 m above the ground level. How long will it take to REACH -460m. According to the question, TOTAL distance elevator has to travel => initial position - Final position => 20 - ( - 460 ) => 480 m Now, elevator descends at rate of = 12 m/min elevator travel = 12 m/min = 1 min elevator travel 1 m = 1/12 min elevator travel = 460 = 1/12 X 480 => 40 it will take = 40 minutes

An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it plaess

Answer»

EXPLANATION.

An elevator DESCENDS into a mine shaft at the

rate = 12m/min.

if the descends starts from 20 m above the

ground level.

How long will it take to REACH -460m.

According to the question,

TOTAL distance elevator has to travel

=> initial position - Final position

=> 20 - ( - 460 )

=> 480 m

Now,

elevator descends at rate of = 12 m/min

elevator travel = 12 m/min = 1 min

elevator travel 1 m = 1/12 min

elevator travel = 460 = 1/12 X 480

=> 40

it will take = 40 minutes

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An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it plaess​