The axis of the three-hinge arch ABC is a parabola with vertex at B. Knowing that 14 P = kips and Q = 21 kips, determine (a) The components of the reaction at A, (b) The components of the force...

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The axis of the three-hinge arch ABC is a parabola with vertex at B. Knowing that 14 P = kips and Q = 21 kips, determine
(a) The components of the reaction at A,
(b) The components of the force exerted at B on segment AB.