Dynamic Systems (as they are used in this worksheet) are mechanical systems comprising of masses and constraints. Constraints are a set of rules that have to be followed as the masses are allowed to move freely. For example, a very simple dynamic system might be that of a pendulum. The constraint of a pendulum is that one mass has to stay at a fixed distance from a fixed mass (rigid-rod constraint). Examples of more complex system are a double pendulum and a triple pendulum. 4 case studies are presented in this work sheet: Damped Oscillation, Resonance, Bead on wire, and Vibrating Tower. A practice problem can be found at the end of the work sheet.