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The velocity (v) of a particle (under a ...

The velocity (v) of a particle (under a force F) depends on its distance (x) from the origin (with `x gt0`) `v prop(1)/(sqrt(x))`. Find how the magnitude of the force (F) on the particle depends on x.

A

`F prop frac(1)(x^3div2)`

B

`F prop frac(1)(x)`

C

`F prop frac(1)(x^2)`

D

`F prop x`

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