Identify the character of Mahabharata with the help of following information:
• He was the son of Bheema.
• He belonged to Rakshasa clan from maternal side.
Ghatotkacha: Ghatotkacha was the son of Bhima and Hidimba, a Rakshasi, who was a member of a tribe that is often identified as having supernatural powers.
Duryodhana: Duryodhana was the eldest of the Kaurava princes, and not related to Bhima.
Abhimanyu: Abhimanyu was the son of Arjuna and Subhadra and was not from the rakshasa clan.
Bheeshma: Bheeshma was a prominent character of Mahabharata and is known for his vows of celibacy and serving as the commander of the Kaurava army. He had no connection with the Rakshasa clan.

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?