D. | 1300 mm 4 m 20 kN 100 mm A B, -3 m

The beam shown has an overall length L of 5.9 metres. A uniform distributed load of 7.8 kN/m is applied as shown. If the distance x is 2.3 metres, determine the magnitude (in kNm) of the reaction moment at A. Note: Do NOT include the units in your answer.

The man has a mass of 100 kg and center of mass at G. If he holds himself in the position shown, determine the maximum tensile and compressive stress developed in the curved bar at section a–a. He is supported uniformly by twobars, each having a diameter of 25 mm. Assume the floor is smooth. Use the curved-beam formula to calculate the bending stress.

The strut has a square cross section a by a and is subjected to the bending moment M applied at an angle as shown. Determine the maximum bending stress in terms of a, M, and u. What angle u will give the largest bendingstress in the strut? Specify the orientation of the neutral axis for this case.

4. Determine the force at roller B if a 15 mm gap resulted from a construction error. Compare the maximum moment in the beam to the case if no gap existed. The steel beam is a W250x32.7 16 kN/m B 15 mm 4 m 6 m

The beam is supported by a pin at point A and a roller at kN point B. A distributed load of W₁ = 8 - and an applied m force of F₁ = 12 kN are applied to the beam. The beam has an allowable bending stress of allow = 6 MPa. Neglect the weight and thickness of the beam. Take the origin for all functions to be at A., i.e. start at the left and go right. Must use positive sign convention for V and M. d3 1 d3 d1 W1 d1 B O h d2 F₁ Values for the figure are given in the following table. Note the figure may not be to scale. Dimensions for the whole beam Variable Value d₁ 4 m d₂ 2 m

Determine the smallest force P required to remove the wedge.