Find the amount of compression occurring in the spring in the horizontal equilibrium position.

?$?$Find out with what angular frequency the plank will make a simple harmonic motion.

A horizontal plank of mass M 4 (kg) and length L = 2 (m) is attached to a rotating shaft passing through one end. The other end is supported by a spring with a force constant of 108 (N/m). The plank was released by being separated by a small angle from the equilibrium position. 0 = M, L k