In the figure shown the potential energy $(U)$ of a particle is plotted against its position $'x'$ from origin. The particle at
In the figure shown the potential energy $(U)$ of a particle is plotted against its position $'x'$ from origin. The particle at
- A
$x_1$ is in stable equilibrium
- B
$x_2$ is in stable equilibrium
- C
$x_3$ is in stable equilibrium
- D
None of these
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The diagram to the right shows the velocity-time graph for two masses $R$ and $S$ that collided elastically. Which of the following statements is true?
$(I)$ $R$ and $S$ moved in the same direction after the collision.
$(II)$ Kinetic energy of the system $(R$ & $S)$ is minimum at $t = 2$ milli sec.
$(III)$ The mass of $R$ was greater than mass of $S.$
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$(I)$ $R$ and $S$ moved in the same direction after the collision.
$(II)$ Kinetic energy of the system $(R$ & $S)$ is minimum at $t = 2$ milli sec.
$(III)$ The mass of $R$ was greater than mass of $S.$