Read the following text carefully:
The growing carbon footprint of industries has put the power and steel sectors in the spotlight as major contributors to the climate crisis. The challenge of climate change can be tackled only by making our industries and businesses follow practices and processes that reduce their carbon footprint. This can be achieved only through green financing.
Green financing aims to increase the level of financial flows (from banking, micro-credit, insurance, and investment) from the public, private, and not-for-profit sectors toward sustainable development priorities.
Global green finance has also started targeting Indian companies. Global development finance institutions and funds are ready to offer long-term support (both equity and debt) at affordable rates to projects like solar energy and hydropower.
Green finance can positively affect environmental quality, economic development, and financial issues that promote the green economy, such as reducing greenhouse gas emissions, improving energy efficiency, or enhancing the organic economy.
On the basis of the given text and common understanding, answer the following questions:

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?