An elevator descends into a mine shaft at the rate of 13m/min. If the descend starts from 20 m above
the ground level, how long will it take to reach-240 m?
Answers
Answered by
78
Answer:
Given:rate=13m/min,height from ground level=20m,depth of mine from ground level=240m
Therefore total height =240+20=260m
Total time taken to reach the 240m=260/13=20min...answer
Answered by
41
Step-by-step explanation:
Since it is 20 m above ground level (given)
Total distance =240+20=260m
Given speed =13 m/min
Total time =Total distance /Speed
=260/13=20 min
It will take 20 min or 1200 s
Similar questions