A wooden plank of length 1 m and uniform cross section is hinged at one end to the bottom of a tank as shown in figure. The tank is filled with water up to a height of 0.5 m. The specific gravity of the plank is 0.5. Find the angle
θ (in degrees) that the plank makes with the vertical in the equilibrium position (exclude the case
θ=0).
![156652_314baea8da2f4dc2836c304ca0f80d54.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/156652_314baea8da2f4dc2836c304ca0f80d54.png)