3 The ratio of the reactions RA and RB of a simply supported beam shown in * below figure is 5 kN 2kN/m 3 kN A. 2 m - 2 m 2 m - 2 m B

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A beam, which is fixed at one end, is acted upon by a distributed load (the curve is a continuous cubic curve) as shown in the figure. Calculate the reactions at the support. Include proper signs (with right, up and counterclockwise assumed to be positive for X, Y and the moment) 300 N/m y = kx3 %3D 300 N/m 4 m 3 m Ry (in N) = ? R,(in N) = ? M* (in N) =?

For the suspended load F = 637lb in the figure. Find the magnitude of the reaction of the patella at O.

The structure in Figure Q4 is made of two members, AB and BC, both made of metal with a Young's Modulus E = 110.41 GPa. Member AB has a rectangular cross-section, whose sides measure a = 35 mm, and b = 81 mm.        Figure Q4   Calculate the Second Moment of Area of member AB with respect to its strongest orientation. Use π = 3.14159 in your calculations if needed. Express your answer in the unit: mm4.  Report your answer to 2 decimal places.

QUESTION 4 For the loaded structural beam shown in the Figure, the resultant support reaction at B is: 4 kN 7 kN 45° 30° B C. 1 m Im 15m 幸 · Beam O a. 4.46 kN Ob. 2.81 kN O c. 6.33 kN O d. 3.234 kN