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:

Question

Aicharya · Accepted Answer

Net torque &#964; net about B is zero at equilibrium T A &#215; 100 - m g &#215; 50 - 2 m g &#215; 25 = 0 T A &#215; 100 = 100 &#215; m g &#8756; T A = 1 &#160; m g .

Shown in the figure is rigid and uniform one meter long rod AB held in horizontal position by two strings…

Solution