Question

An eve elevator descends into a mine
shaft at the
at the rate 6 metre
rate 6 metre per minute.
How long will it take reach (-370) m, if
the descent starts from 50 m above the ground
level?

​

Answer 1

Answer:

60

Step-by-step explanation:

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