Shown in the figure is rigid and uniform one meter long rod $AB$ held in horizontal position by two strings tied to its ends and attached to the ceiling. The rod is off mass $' m'$ and has another weight of mass $2 m$ hung at a distance of $75 cm$ from $A$ . The tension in the string at $A$ is:

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TestHub · Accepted Answer

Net torque τ net about B is zero at equilibrium T A × 100 - m g × 50 - 2 m g × 25 = 0 T A × 100 = 100 × m g ∴ T A = 1 m g .

Physics - Rotation Question with Solution | TestHub

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