(A) Establishment of the Gajapati Kingdom of Orissa: The Gajapati Kingdom of Orissa was indeed a contemporary power of the Vijayanagara Empire. They were often in conflict with the Vijayanagara rulers, and at one time captured a large part of the kingdom.
(B) Establishment of the Sultanates of Malwa: The Sultanates of Malwa were also a contemporary power in the north of the Vijayanagara Empire. They were often in conflict with their neighbors.
(C) Emergence of Sultanates of Bijapur: The Sultanates of Bijapur was one of the Deccan Sultanates that emerged in the region surrounding Vijayanagara after the decline of Bahmani sultanate. They were a major power in the region during the period.
(D) Rise of the Chalukyas in Karnataka: The Chalukyas of Karnataka were not contemporaries of the Vijayanagara Empire, as the Chalukya dynasty ruled much earlier, between the 6th and 12th centuries CE.

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?