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प्रश्न
What are the conditions in which force can not produce torque?
उत्तर
The forces intersect (or) passing through the axis of rotation cannot produce torque as the perpendicular distance between the forces is 0 i.e. r = 0.
∴ `vectau = vecr xx vecF = 0`.
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⊗ represents a unit vector coming out of the page.
⊗ represents a unit vector going into the page.
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