P7b-Mass/spring system (Assume the spring has negligible mass in this example). A weight hanger is suspended on a spring as shown in fig. #2. The mass is pulled down 10 mm from the rest position and released. Using a set of data allocated from the table below, determine the following. The frequency of vibration The periodic time The maximum velocity and acceleration and state the points where these occur. Figure 2 Mass M (g) Spring stiffness k (Nmm) 1 50 5 Spring stiffness 2 100 10 34 75 8 4 150 15 5 65 12 11 110 12 60 13 125 816 Suspended mass M