Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 544
rizontal strut ^/A, find the counter-balance weightIV required at K to balance the load on the crane about J.Find also the tension in the back stay and the thrust in thecrane post //. Ans. 2.91 tons; 4.12 tons; 1.43 tons. Note. — The counter balance weight IV should be found bytwo methods; first by… … 5. On a horizontal line OX mark off towards X the lengths OA =0.5, OB =1.1, 0C= 2.0, 0Z> = 2.5, and above the line setoff the^angles OAP=3S°, OBQ=-jo°, OCM=no°, and ODN= 1200. Suppose forces of 320, 145, 570, and 416 lbs. to actrespectively along PA, QB, MC, and ND. Find the resultantforce, and…
