Question

Suppose we represent the distance above the ground by a positive integer
and that below the ground by a negative integer, then answer the following:
(i) An elevator descends into a mine shaft at the rate of 5 metre per minute. What will
be its position after one hour?
(ii) If it begins to descend from 15 m above the ground, what will be its position after 45
minutes?

Answer 1

अलमीरा कंघी करछुल फूनल ट्यूबलर चटाई चम्मच चलनी चिमट

Answer 2

Answer:

Main question -

If an elevator descends at a rate of 5m/min and

begins to descend from 15 m above the ground, what will be its position after 45

minutes?​

Answer-

-210 m

Explanation-

An elevator descends at a rate of  = 5m/min

The distance where it begins = +15 m

The position after 45 mins = 5 *45  = 225m below

=  225 - 15 = 210

= -210

So, the lift's position will be at -210m below the ground

Conclusion -

Hope it helps

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Step-by-step explanation: