Static equilibrium Indicate the direction of positive rotation and the axis of rotation in this problem, as well as the usual coordinate frame. Use vector notation, correctly, for both parts. 2. A bar, 0.750 kg in mass, is attached to the vertical wall via a rotatable hinge, and to the horizontal ceiling with a string, as shown. The bar is 1.00 m long, and the string is attached to the bar 0.10 m from its right end.
a. What is the tension in the string?
b. What is the full vector description of the force exerted by the hinge on the bar?