Problem 14.81. A rectangular block of wood floats in a calm lake. If friction is ignored, when the block is pushed gently down into the lake, the block will oscillate with SHM. Determine the equation for the force constant.Sketch the situation, defining all your variables.What physics equation(s) will you utilize in order to solve this problem? For each equation you list, give a justification for why it applies to this situation.Apply your equation(s) to solve, first for an algebraic expression(s), then for any numerical answer(s). Show the units of your answer(s), and how you got them. Present your work clearly and neatly.