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Grade 11IIT JEE Entrance Exam

The force acting on a body moving along x-axis varies with the position of the particle as shown in the figure the body is in stable equilibrium at
A x=x1
B x=x2
C both x1 and x2
D neither x2 nor x2

Question image for The force acting on a body moving along x-axis va

Sudhanva G V

7 Years agoGrade 11

1 Answer

Arun

7 Years ago

When particle moves away from origin then at position x = x1,

Force is zero

And at x > x1, force is positive (repulsive in nature)

So particle moves further and doesn't return to the original position i.e. the equilibrium is not stable.

Similarly at x = x2, force is zero,

And at x > x2, force is negative (attractive in nature),

so particle return back to the original position hence equilibrium is stable.

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