$1\mathrm{.}4$ Hustrative Examples$-$Small Deflection Analysis

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FIGURE $1\mathrm{.}10$ Rotational spring$-$supported rigid bar system $($small deflection analysis$)($ Q$\mathrm{.}1$ Work done by the load is positive right? Then why are subtracting the work done from strain energy $?$ Q$\mathrm{.}2$ Strain energy is absorbed by the transfering of energy by the work done by load $,$ Then if we consider load p $$ K$/$L and assume a problem such that K $=10$ and P $=5,$ Potential energy is positive $?$ Q$3.$ Strain energy is stored in spring $,$ then where is the potential energy of the system is $?$