Question

Problem 5.76 Determine the components of reaction force at the support A using scalar notation. Express your answers using three significant figures separated by a commas. The member is supported by a pin at A and cable BC. Suppose that 2.5 m and the cylinder has a mass of 50 kg. (Figure 1) Submit Request Answer Figure 1 of 1 Part C Determine the components of moment of reaction at the support A Express your answers using three significant figures separated by a comma. 05 (MA), (Ma) Submit Provide Feedback Next>

Answer 1

Now we know A is pin jointer so M_Ay = 0 apply moment equation. equation in y direction 50 times 2.5 - F sin 18 .99 degrees + M_Ay = 0 F = 154. 125 Kn now apply moment equation. equation in x direction 50 times 1 - F sin 18 .53 degrees times 1 + M_Ax = 0 M_Ax = -100 KN .m = 100 KN > (clock wise looking at A from any position positive x axis) now apply moment equilibrium equation in z-direction 154.125 times cos 18.93 degrees sin 30. 96 degrees times 2.5 - 154. 125 times cos 18.53 degrees times 30.56 degrees times 1 + M_Az = 0 M_Az = -62.51 KN.m = 62.51 (anti clock wise looking at A from any point on positive z- axis) from reaction equilibrium equation R_Ax = F_xy cos 30 degrees gt = 125.01 Kn R_Ay = F_xy sin 30 degrees gt = 75 Kn