Question

An elevator descends into a mine shalf at the rate of 3 m per minute. lf the descent start from
20 m above the ground level, how long will it take to reach -160 m
​

Answer 1

Answer:

60

Step-by-step explanation:

total distance= 180 m

time=d/s

T=180/3

Time=60 minutes

Answer 2

Answer:

1 hour

Step-by-step explanation:

total distance will be travelled..

20-(-160)=180m

mine shalf descends

3m/minute

180m/? minute

60 minutes to take desends into ground level