A force $\vec F$ acts on a particle having position vector $\vec r$ (with respect to origin). It produces a torque $\vec \tau $ about origin, choose the correct option
A force $\vec F$ acts on a particle having position vector $\vec r$ (with respect to origin). It produces a torque $\vec \tau $ about origin, choose the correct option
- A
$\vec r.\vec \tau > 0$ and $\vec F.\vec \tau < 0$
- B
$\vec r.\vec \tau = 0$ and $\vec F.\vec \tau = 0$
- C
$\vec r.\vec \tau = 0$ and $\vec F.\vec \tau \ne 0$
- D
$\vec r.\vec \tau \ne 0$ and $\vec F.\vec \tau = 0$
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