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Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
हिन्दीTwo forces of equal magnitude \( F = 25\,\text{N} \) act in opposite directions along parallel lines separated by a perpendicular distance of \( 0.8\,\text{m} \), forming a couple. If the origin is chosen at a point \( 0.5\,\text{m} \) outside the region between the forces along the common normal line, the net torque of this couple about this origin is:
Correct answer · Option 3
20 N·m
Explanation
The moment of a couple is independent of the choice of origin and is given by \( \tau = F \times d = 25 \times 0.8 = 20\,\text{N}\cdot\text{m} \).
