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

A 0.20 kg particle moves along the x-axis only due to its interaction with a stationary object. The potential energy is given by $\mathrm{U}(\mathrm{x})=\left(8.0{\mathrm{x}}^2+2.0{\mathrm{x}}^4\right)\mathrm{J}$, where x in meters is position coordinate of the particle. If the particle has a speed of 5.0 m/s when it is at $\mathrm{x}=1.0\mathrm{m}$, what is its speed when it is at the origin?