A 215-kg robotic arm at an assembly plant is extended horizontally. The massless support rope attached to point B makes an angle of 15.0° with the horizontal, and the center of mass of the arm is at point C.
(a) What is the tension in the support rope?
(b) What are the magnitude and direction of the force exerted by hinge A on the robotic arm to keep the arm in the horizontal position?
