When determining the reactions at joints A, B, C, D and E, what is the total number of unknowns in solving this problem? A 140 lb 140 lb 6" 24" 6" D Pin 45° 9 6 8 36" B 45° 15° E O Roller 07 Q Search L % 17 FB: & acer 111 8 9 0

The clockwise angular velocity of the link AB shown in (Figure 1) is WAB = 3.2 rad/s. Figure C 4 in.- @AB 45° 5 in. 45° A 90° B D 3 in. < 1 of 1 Part A Determine the angular velocity of the connecting link BC at the instant shown. Express your answer in radians per second to three significant figures. 197| ΑΣΦ ↓↑ vec WBC = Submit Part B WCD= Submit Request Answer Determine the angular velocity of the connecting link CD at the instant shown. Express your answer in radians per second to three significant figures. IVE 41 Π| ΑΣΦ | | Provide Feedback Request Answer www vec ? rad/s ? rad/s

Y Y Determine the moment of each force about the bolt located at A (Figure 1). Take FB = 45 lb. Fo= 30 lb Figure < 1 of 1 Y 2.56 Part A Determine the direction of the moment produced by FB- clockwise Ocounterclockwise Submit Request Answer Part B Determine the magnitude of the moment produced by FB- Express your answer with the appropriate units. μÅ 346 OB My about A Value Units Submit Request Answer Part C Determine the direction of the moment produced by Fe O clockwise counterclockwise 9.75 Submit Request Answer Part D Determine the magnitude of the moment produced by Fc. Express your answer with the appropriate units. HA S C Mpe about 4 = MEC A Value Submit Request Answer Part n ? Units ?

A steel column is supported at the top by two steel rods so as to prevent movement at the top in the x-direction and the y-direction as shown. The column in this case is assumed to be fixed at the bottom and free to rotate but not translate at the top (pin support in x and y directions).  If the steel rod along x-x fails (snaps). In this case, the recommended value of Kx for this column should be equal to: