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

Potential energy vs position graph of a particle in a particular system is given and here P.E. is $\mathrm{U}={\mathrm{ax}}^2$. There is a non conservative force also acting on a particle in such a manner that mechanical energy loss due to its work is equal to four times the distance travelled. Initially particle is at $\mathrm{x}=10$, has kinetic energy 36 J and moving towards origin. When it reaches origin second time then kinetic energy of particle is :-