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A force F1 acts on a particle so as to a...

A force `F_1` acts on a particle so as to accelerate it from rest to a velocity v. The force `F_1` is then replaced by `F_2` which decelerates it to rest

A

`F_(1)` must be unequal to `F_(2)`

B

`F_(1)` may be equal to `F_(2)`

C

`F_(1)` must be equal to `F_(2)`

D

None of these

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