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If vec F is the force acting in a partic...

If `vec F` is the force acting in a particle having position vector `vec r` and `vec tau` be the torque of this force about the origin, then

A

`vecr.taugt0`and `vecF.tault0`

B

`vecr.tau=0` and `vecF.tau=0`

C

`vecr.tau=0` amd `vecF.taune0`

D

`vecr.taune0` and` vecF.tau=0`

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