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The force acting on a body moving along x axis varies With position of the particle as shown in the fig . The body is in stable equilibrium at :

The force acting on a body moving along x axis  varies 
With position of the particle as shown in the fig .
The body is in stable equilibrium at :
 

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Grade:12th pass

2 Answers

Himanshu Rathour
119 Points
5 years ago
Body is in stable equilibrium neither x1 nor at x2
Stable equilibrium is one where if body displaced will come back in its initial position.
Sneha Harish
20 Points
5 years ago
For equilibrium, dU/dx=0=-F.
=> Fdx=dU
=>-x1∫x2 Fdx=∫dU =0
=>F(x1-x2)=0
=>x2=x1
The body was initially in x1
It was given some force the it went to x2,(x2=x1)
If it has come back to x1, x1 must be stable equilibrium. 
 
therefore,  x1=x2 is stable equilibrium
Please check if this is the right answer and tell
 
 

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