7. The uniform 150-kg bar AB shown in Figure 5 carries a 2KN vertical force at A. the bar is supported by a pin at B and the 10 mm diameter cable CD. Find the stress in the cable.

7. The uniform 150-kg bar AB shown in Figure 5 carries a 2KN vertical force at A. the bar is supported by a pin at B and the 10 mm diameter cable CD. Find the stress in the cable.

8. The 1000-kg uniform bar AB in Figure 6 is suspended from two cables AC and BD, each with cross sectional area of 400 mm2. Find the magnitude P and the location x of the largest additional vertical force that can be applied to the bar. The stresses in AC and BD are limited to 100 MPa and 50 MPa, respectively.