m 1 Replace the loading system by an equivalent resultant Force and couple moment acting at point A. Assume F = 130 lb, F= 60 lb and F = 180 lb (Figure 1) Part A Determine the magnitude of the resultant force. Express your answer to three significant figures and include the appropriate units. ? FR = Value Units Submit Request Answer igure 1 of 1 Part B F, Determine the angle between the resultant force and the z axis. Express your answer using three significant figures. 1 ft Vol AEo IT vec 3 ft counted counterclockwise from positive %3D axis Submit Request Answer O G 4) ENC

Using τall = 71 MPa and G = 27 GPa, determine for each of the aluminum bars shown the largest torque T that can be applied and the corresponding angle of twist at end B. Refer to Table 3.1.       The largest torque that can be applied at end B of bar a is  N·m and the corresponding angle of twist is  °.   The largest torque that can be applied at end B of bar b is  N·m and the corresponding angle of twist is  °.

2. A concrete beam is shown below. A. Determine the magnitude of the resultant force acting on the beam (2 decimal places) B. The distance of resultant force from the left edge (3 decimal places) C.If the loads will be replaced by a single force located at the left edge, what moment must be paired with it (Clockwise positive) to be equivalent to the original loads? (2 decimal places) w, w, M Given W1 = 11 kN/m W2 = 14 kN/m %3D M = 4.3 kNm L1 = 4.1 m L2 =1.9 m

The shaft is supported by a journal bearing at A and a thrust bearing at B. (Figure 1) Figure -6 ft- 3000 lb 2500 lb 75 lb/ft I pontot, -12 ft 1 of 1 2 ft Part A Determine the normal force at a section passing through point C, which is just to the right of the bearing at A. Express your answer to three significant figures and include the appropriate units. Nc = Submit Part B HÅ Submit Value Part C Request Answer Determine the shear force at a section passing through point C, which is just to the right of the bearing at A. Express your answer to three significant figures and include the appropriate units. Vc = Value μA Units Request Answer ? Units ? Review