Question

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

Answer 1

EXPLANATION.

• GIVEN

Elevator descends into a mine shaft at the

rate of 6 m/min.

if descent starts from 10 m above the ground level.

to find how long will it take to reach 350 m.

according to the question,

Total distance from A to c is

350 + 10 = 360 m

speed = 6 m/min

$\bigstar\blue{\boxed{time \: = \frac{total \: \: distance \: \: covered}{speed}}}$

$t \: = \frac{360}{6}$

t = 60 minutes

Therefore,

60 minutes will it take to reach 350 m

Note = for diagram see the image attachment.