‘Shanta Enterprises’ was in the business of manufacturing solar panels for the last fifteen years. With their expertise now they were able to manufacture good quality solar panels at lower cost. As a result ‘Shanta Enterprises’ was flooded with orders and was able to generate a good profit margin.
To motivate the employees the company decided to compensate some of them for their hard work. Arvind and Yogesh, who were working on contract basis, were absorbed permanently in the company. Both were happy as now there was stability about their future income. Ekta, a regular employee of the company, working as Research and Development Head, was awarded the ‘Best Employee of the year Award’.

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?