An elevator descends into a shaft at the rate of 3m/min. If the descent starts from 40 m above the ground level, how long will it take to reach -20 m?
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4
Above user just copied half Question and pasted it in answer. xD
Step-by-step explanation:
speed = distance / time
3 = 20 / time
time = 3/20 min or 9 sec
Answered by
3
Answer:
The required time is 20 min
refer to the attachment please!!!
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