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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 equal to `F_2`

B

`F_1` may be equal to `F_2`

C

`F_1` must be unequal to `F_2`

D

none of these

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • A 5kg. mass is accelerated from rest to 60 m/s in 1 sec. what force acts on it:-

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  • When force vec(F)_(1),vec(F)_(2),vec(F)_(3) are acting on a particle of mass m , the particle remains in equilibrium. If the force vec(F)_(1) is now removed then the acceleration of the particle is :

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