The concept of naturalisation of humans refers to the process through which human beings adapt and become integrated into their physical and social environments. This process involves changes in the natural environment, cultural practices, and social institutions that shape the way humans live.
Naturalisation occurs when humans adjust their behavior and modify the environment to make it more suitable for their needs, while also adapting to the constraints and opportunities offered by the environment.
Some key elements of naturalisation include:
Naturalisation is both a biological and cultural process, where humans influence their environment while being influenced by it.

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?