an elevator descends into a mine shaft at the rate of 7m/min. if it starts from 5m above ground level, how long will it take to reach 205m down the earth
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this is the correct answer
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Answer:
The time taken is 30 min or 0.5 hours.
Step-by-step explanation:
The elevator starts from 5 m above the ground.
Therefore , total distance to be covered=(205+5)m=210 m.
Speed=7 m/min.
Therefore, time=D/S
= 210/7 min
= 30 min
= 0.5 hr
Ans > The time taken is 30 min or 0.5 hours.
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