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Passage XII) A particle of mass m is con...

Passage XII)_ A particle of mass m is constrained to move along x-axis. A force F acts on the particle. F always points toward the position labelled E. For example, when the particle is to the left of E,Fpoints to the right. The magnitude of F is consant except at point E where it is zero. The systm is horizontal. F is the net force acting on the particle. the particle is displaced a distance A towards left from the equilibrium position E and released from rest at t=0.
Find minimum time it will take to reach from x`=-A/2` to 0

A

`3/2sqrt((mA)/F)(sqrt(2)-1)`

B

`sqrt((mA)/F)(sqrt(2-1))`

C

`2sqrt((mA)/(F))(sqrt(2)-1)`

D

None of these

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The correct Answer is:
B
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