FIGURE $2\mathrm{.}27$ Problems $2\mathrm{.}1,2\mathrm{.}2,2\mathrm{.}5,2\mathrm{.}6,2\mathrm{.}8,$ and

$2\mathrm{.}9.$

Problem $2\mathrm{.}2$: For the system in Prob. $2\mathrm{.}1,l=60$ in$.,EI={10}^{8}lb-i{n}^2,W=2000lb,$ and

$k=2$ kips$/$in$.$ If the weight has a displacement of $0\mathrm{.}5in.$ and a velocity of $10in./$sec

at $t=0,$ what is the displacement and velocity at $t=1$ sec$?$ Assume no damping.

Answer in picture.