2. A singledegreeoffreedom system with m : 10139 is excited by an impact force: which gives the mass an initial velocity v0. The resulting displacement response is measured by a laser displacement sensor and recorded as a function of time. Use cravetting tool in Matlah (type in cftool to launch the tool) to estimate the spring constant is: damping coefcient c, and initial velocity two. The raw data is provided as a .mat le. Attach a screenshot of your curvetting results