Class 11

Physics

Mechanics

Work, Energy and Power

In figure, the variation of potential energy of a particle of mass $m=2kg$ is represented w.r.t its x-coordinate. The particle moves under the effect of the conservative force along the x-axis. Which of the following statements is incorrect about the particle?

- If it is released at the origin, it will move in negative x-axis.
- If it is released at $x=2+Δ$, where $Δ→0$, then its maximum speed will be $5ms_{−1}$ and it will perform oscillatory motion.
- If initially $x=−10$ and $u=6 i^$, then it will cross $x=10.$
- $x=−5$ and $x=+5$ are unstable equilibrium positions of the particle.