Question

An elevator descends into a mine shaft at the rate of 6 m per min. If the descent starts from 10m
level, how long will it take to reach –350 m deep from the ground
​

Answer 1

Answer:

ok dear

Step-by-step explanation:

Correct option is

C

60 minutes

Distance descended is denoted by a negative integer,

Initial height =+10 m

Final Depth =−350 m

Total distance to be descended by the elevator =(−350)−(+10)=−360 m

Given, the time is taken by the elevator to descend −6 m=1 minute

Thus, time taken by the elevator to descend −360 m=

(−6)

(−360)

------- [from the formula : speed=

time

distance

]

=60 minutes