CIVE 210 Homework 3, Spring 2011

SVE STATICS H . 6.20) The sack has a weight of 15 Ib and is supported Two different ere ree and BC are connecte by THe’ six cords tied together as shown. Determine the together at 8. If forces of 60 Ib and 80 Ib are applied t tension in each cord and the angle @ for equilibrium. Cord the rings at 4 and B, determine the vertical displacemex BC is horizontal of point A. 3-21} Each cord can sustain a maximum tension of 200 Ib. . Tmine the largest weight of the sack that can be supported. Also, determine 8 of cord DC for equilibrium. h kag = 500 lb/ft ‘| F, = 80 Ib ‘iO 4 2 O _ [*3-36) Determine the mass of each of the two cvlinder. cause a sag of s = 0.5 m when suspended from th rings at A and 8, Note that s = 0 when the cylinders art removed. )Uhe shear leg derrick is used to haul the 200-kg ish onto the dock, Determine the compressive force along each of the legs AB and CB and the tension in the winch cable DB, Assume the force in each leg acts Rest a) along its axis. , k= 100 N/m Three 10-Ib spheres and one 15-Ib 5 Goa) from the oe tf the i pulley-and-cable system. If the pulleys are frictionless and the centers of all of them lie in the same horizontal plane, determine the sag s for equilibrium of the system.