Determine the force in member EF of the loaded symmetrical truss. Assume no horizontal reactions at the supports A and C. The force is positive if in tension, negative if in compression. A 5 m 10° 10⁰° 24° Answer: EF = i B E D L

The mechanism used in a marine engine consists of a single crank AB and two connecting rods BC and BD as shown in (Figure 1). Assume r = 0.2 m Part A Determine the magnitude of the velocity of the piston at D the instant the crank is in the position shown and has an angular velocity of w 4 rad/s. Express your answer with the appropriate units. НА VD = Value Units Submit Request Answer Part B Determine the direction of the velocity of the piston at D the instant the crank is in the position shown and has an angular velocity of w = 4 rad/s. Oup and to the left Figure <1 of 1 O down and to the right Submit Request Answer

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Problems 5-111 through 5-116 Figures P5-111 through P5-116 show completed shearing force diagrams for beams. Develop the loading diagram and the bending moment diagram for each beam.

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F, = 50 N F2 = = 40 N -5 45° F1 = 20 N