Frank was an Irish sailor and a man whom Eveline loved and admired. She loved him so much that she wanted to elope with him and lead a respectful life. He was a very kind and open-hearted man who wished to marry Eveline. But Eveline's father had found out about the affair and was against her wish and had forbidden her from saying anything to him. Hence, Eveline's father did not like him and quarrelled with him about their affair.

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?