An elevator descends into mine shaft at the rate of 5 metre per minute. If the descend starts from 30 metre above the ground. How long it will take to reach -340 metre?
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An elevator descends into mine shaft at the rate of 5 metre per minute. If the descend starts from 30 metre above the ground. How long it will take to reach -340 metre?
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Step-by-step explanation:
distance=370m
speed=5m/min.
time=distance/speed
time=370/5
time=74min. or 1hr. 17 min.