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Byju's Answer
Standard XII
Physics
Translational Equilibrium Revisited
For a rigid b...
Question
For a rigid body at rest in ground frame, if sum of the torques is zero about some points, then
A
Net torque is zero about all other points
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B
Net torque is zero about no other points
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C
Net torque is zero about some points & nonzero about some points
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D
Net torque would be zero or nonzero depending upon situation
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Solution
The correct option is
A
Net torque is zero about all other points
Net torque is zero about all other points.
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Similar questions
Q.
If
→
τ
×
→
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=
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for a rigid body, where
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τ
=
resultant torque &
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If
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Statement I: Torque of pseudo force about any point lying on the rigid body is always zero.
Statement II: Torque of pseudo force about the centre of mass of the rigid body is always zero.
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For rotational equilibrium of a rigid body, it is essential that net torque about the axis of rotation must be zero.
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Torque of pseudo force about the centre of mass of the rigid body is always zero.
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