Question

19. An elevator decends at the rate 4m/min. If the descent starts from 30m above the
ground level, how long will it take to reach -350m.​

Answer 1

Answer:

95 min

Step-by-step explanation:

Speed = 4m/min

Distance = 30 + 350

= 380

Time = Distance/Speed

= 380/4

= 95 min

Answer 2

Answer:

Given:

rate of descending:4m/min

above 30m

RTP:

how much time does it take to reach -350m

Sol:

=30+350=380m

=380m/4

=95min

Conclusion:

elevator takes 95mins to travel -350metresqq