A wooden plank of length 1m and uniform cross-section is hinged at one end of the bottom of tank as shown in figure. The tank is filled with water upto a height of 0.5 m. Find the angle theta that the plank makes with the vertical in the equilibrium position. [Exclude the case thea = 0]

A wooden plank of length 1m and uniform cross-section is hinged at one

1.	A wooden plank of length 1m and uniform cross-section is hinged at one end of the bottom of tank as shown in figure. The tank is filled with water upto a height of 0.5 m. Find the angle theta that the plank makes with the vertical in the equilibrium position. [Exclude the case thea = 0]
Answer» ANSWER :`[THETA = 45^(@)]`