Physics - W.E.P. Question with Solution | TestHub

A particle$\left(\mathrm{m}=1\mathrm{}\mathrm{k}\mathrm{g}\right)$slides down a frictionless track$\left(\mathrm{A}\mathrm{O}\mathrm{C}\right)$starting from rest at a point$A$(height$2\mathrm{}\mathrm{m}$). After reaching$C,$the particle continues to move freely in air as a projectile. When it reaching its highest point$\mathrm{P}$(height$1\mathrm{}\mathrm{m}$), the kinetic energy of the particle (in$\mathrm{J}$) is: (Figure drawn is schematic and not to scale; take$g=10\mathrm{}\mathrm{m}{\mathrm{s}}^{-2}$) ______________.