While digging a small hole prior to planting a tree, a homeowner encounters rocks. If he exerts a horizontal 269-N force on the pryb as shown, what is the horizontal force exerted on rock C? Note that a small ledge on rock C supports a vertical force reaction there. Neglect friction at B. Complete solutions (a) including and (b) excluding the weight of the 15-kg prybar. 269 N A 1260 mm 20 B 230 mm

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