Physics · Rotational Motion
The net external torque on a system of particles about an axis is zero. Which of the following conditions is NOT compatible with this statement?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The torque caused by some forces may be equal and opposite to that caused by other forces.
- 2The forces may be acting directly on the axis of rotation.
- 3The forces may be acting radially from a point on the axis.
- 4The forces must only act parallel to the axis of rotation and pass through the center of mass.✓
Correct answer
The forces must only act parallel to the axis of rotation and pass through the center of mass.
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