In Fig. E5.10 the weight w is 60.0 N. (a) What is the tension in the diagonal string? (b) Find the magnitudes of the horizontal forces that must be applied to hold the system in the position shown.

Solution to 10E Step 1 Drawing free body diagram at three points namely,(a)at the box, (b) at the second knot, (c)at the first knot. Step2 At the box, Equations of equilibrium condition, Step3, At the first knot: .............................(1) ................................(2) From equation (1) Step 4 At the first knot, So, the tension in the diagonal string T =84.86N 2 F160N F26 0N