T Y 7777777imn77T 22. A uniform beam of mass m is pivoted at one end and held in equilibrium at an angle 4 by a horizon- tal wire, as shown above. The tension 7 in the wire is (A)mg cot 2 (B) mgcot 0 C)mgtan4 (D) 2mg tan 6 (E) mg Please tell me this Answer
for rotational equilibrium, equate external torque equal to zero( extternal Torque = zero). we have torque due to two forces, 1) due to mg. 2) due to Tension(T) and torque is for...