3. The pruning mechanism of a pole saw is shown as it cuts a branch S. For the particular position drawn, the actuating cord is parallel to the pole and carries a tension of 30 lb. Determine the...

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Extracted text: 3. The pruning mechanism of a pole saw is shown as it cuts a branch S. For the particular position drawn, the actuating cord is parallel to the pole and carries a tension of 30 lb. Determine the shearing force P applied to the branch by the cutter, the total force supported by the pin at E and the force exerted by member CD. The force exerted by the light return spring at C is small and may be neglected. 20 X 20% Ans. P = 30 lb 20 RE = D By CD = AB = 1", BC = ED = 3", EB = ĐC = 4", DF = 6"