Question

A uniform cylinder of length L and mass M having cross - sectional area A is suspended, with its length vertical, form a fixed point by a massless spring, such that it is half submerged in a liquid of densityσ at equilibrium position. The extensionx0of the spring when it is in equilibrium is:

in the solution , i did not understand what FBis. Can u please explain clearly?And how do we get the equation for FB ?

Answer 1

this is very hard for me hope you understand

Answer 2

Hope this helps .. :)