Problem $7\mathrm{.}1$

For each system, determine the number of degrees of freedom and add coordinates. For each DOF, indicate if it is rotational or translational. State any additional assumptions you make. For all systems, assume the springs are massless. For a$)$ and b$),$ assume planar motion. For c$),$ assume $3$D motion.

a$)$ This is a simple planar model of a wave b energy converter. The gray filled elements have mass and inertia.

c$)$