C. 3. A trunk of mass M is on a ramp. A rope pulls on the trunk horizontally as shown but the trunk does not move. a. In the box provided, draw a labeled 'free body diagram" (FBD) showing all the forces acting on the trunk. All the forces in the diagram should have descriptive labels giving the name of the force, for example, "T or "F" for the tension. Do not label the weight as "g" - this is the acceleration due to gravity and is not a force. Label the weight as "F", "W", or "Mg". Newton's 3rd law says that all forces come in action-reaction pairs, i.e., if object A exerts a force on B, object B must exert the same force on A but in the opposite direction. Note that action-reaction pairs always must be the same type of force. b. What is the reaction force corresponding to the ramp pushing into the trunk? What type of force is it? What direction is the reaction force and what object does the reaction force act on? What is the reaction force (type, direction, and object) corresponding to the rope pulling the trunk to the right? Give type of force, the direction of the reaction force, and what object the reaction force acts on. FBD d. What is the reaction force corresponding to the Earth pulling down on the trunk? O e. What is the reaction force corresponding to the force that prevents the trunk from sliding? f. The purpose of drawing the free body diagram is to use it when we write out Newton's 2nd law. Why are the reaction forces not included in the free body diagram for the trunk?

A. Draw a different configuration, and make it a diagram similar to Fig. 3. Specifyeach mass and angle you’d be using.B. Determine the tensions T1 and T2 which would be created by each hangingmassC. find the unknown components of T3D.calculate the magnitude and direction of T3

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Using the method of joints, calculate the force in each member of the truss shown. State whether each member is in tension or compression. Figure 2 The homogeneous 48-lb plate is welded to the vertical shaft AB of negligible weight. The assembly is supported by a slider bearing atA and a thrust bearing at B. Determine the force in cable CD and the magnitude of the bearing reaction at B in vector form. Figure 3

QB2: Determine the force in members GH, GB, and BC, and state whether each of these three members is in tension (T) or compression (C), or whether it is a zero-force member (ZFM). Solve this problem using the Method of Sections. [Туре C for LO 3.2, 3.4] 3 kN 3 kN 3 kN 1 kN 1 kN 45° 4m 1m 3 m 3 m 3 m 3 m

Group A Ql- The uniform bar (AB) with end rollers has a weight of (294.3 N) and is supported by the horizontal and vertical surfaces and by the wire (AC). Calculate the tension (T) in the wire and the reactions against the rollers at A and B. o.6m 1.2m 1.6m Q2- Determine the magnitude and position of the resultant of the four parallel forces acting on the rocker arm of the figure. 50N 40N 20N 2- 3m Q3- Determine the reactions for the beam shown in the figure. 300 N Ho0 N l00 N/m om t 8m R2

4.82 Determine the axle loads (normal forces at A, B, and C) for the ore hauler when it is parked on a horizontal roadway with its brakes off. The masses of the cab and the trailer are 4000 kg and 6000 kg, respectively, with centers of gravity at D and E. Assume that the connection at F is equivalent to a smooth pin. 2.4 m- -2m–|-1.5m-| 1m 0.6 m Fig. P4.82

Determine the forces in the members AD, CD, and AC of the truss shown below by using the method of joints. State whether each member is in tension or compression. (Note: You must show all the necessary free body diagrams. All members are weightless.)

Using the method of joints, determine the force in each member of the truss shown. State whether eachmember is in tension or compression. You are required to tabulate the member forces in the table below.

A rear suspension system for a front wheel-drive vehicle is shown here. Spring EF is offset behind member CD. The normal force due to contact between 2 wheel and the road is 4200 N. Assume the weight of the wheel and suspension system components is negligible. (a) Determine the magnitude of the force in member CD. Is the member in tension or compression? (b) Determine the support reactions at A. (c) Determine the unstretched length of the spring EF given a spring constant of 150 kN/m. 60 mm 1130 mm 60 mm 245 mm D 220 mm F 260 mm E B 165 mm 90 mm F = 4200 N