If F^{\to} is the force on a particle having position vector r^{\to} and \tau^{\to} be the torque of this force about the origin, then (2009)

Correct Answer is : →r⋅→τ=0 and →F⋅→τ=0

r^{\to}\cdot\tau^{\to} > 0 and F^{\to}\cdot\tau^{\to} < 0

r^{\to}\cdot\tau^{\to}=0 and F^{\to}\cdot\tau^{\to} = 0

r^{\to}\cdot\tau^{\to}=0 and F^{\to}\cdot\tau^{\to}\neq0

r^{\to}\cdot\tau^{\to}\neq0 and F^{\to}\cdot\tau^{\to}=0

Class 11 NEET Physics System of Particles and Rotational Motion

Question : 61 of 113

Marks: +1, -0

→

is the force on a particle having position vector

→

and

→

be the torque of this force about the origin, then

(2009)

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