A handrail, which weighs 120 N and is 1.8 m long, was mounted to a wall adjacent to a sm...

A handrail, which weighs 120 N and is 1.8 m long, was mounted to a wall adjacent to a small set of steps (Figure P4.26). The support at A has broken, and the rail has fallen about the loose bolt at B so that one end now rests on the smooth lower step.

(a) Draw a free body diagram of the handrail.

(b) Determine the magnitude of the force at B.