Calculate the force and moment reactions at the bolted base O of the overhead traffice-signal assembly. Each traffic signal has a mass of 25 kg, while the masses of members OC and AC are 81 kg and 72 kg, respectively. Positive answers are to the right, up, and counterclockwise. A 25 kg Answers: = i 5.8 m 25 kg B G 1.0 m kN 72 kg 4.8 m 81 kg C 7 m

FREE-BODY DIAGRAM EXERCISES 3/A In each of the five following examples, the body to be isolated is shown in the left-hand diagram, and an in- complete free-body diagram (FBD) of the isolated body is shown on the right. Add whatever forces are nec- essary in each case to form a complete free-body dia- gram. The weights of the bodies are negligible unless otherwise indicated. Dimensions and numerical values are omitted for simplicity. Body Incomplete FBD 1. Bell crank supporting mass m with pin support at A. mg m Flexible cable A Pull P P. 2. Control lever applying torque to shaft at 0. Fo 3. Boom OA, of negligible mass compared with mass m. Boom hinged at O and supported by hoisting cable at B. B m mg 4. Uniform crate of mass m leaning against smooth vertical wall and supported on a rough horizontal surface. A mg B B 5. Loaded bracket supported by pin connection at A and fixed pin in smooth slot at B. Load L Figure 3/A Page5

Only Handwritten,it should not be Typed.

pls answer i will give thumbs up

A block placed under the head of the claw hammer as shown greatly facilitates the extraction of the nail. If a  40-lb pull on the handle is required to pull the nail, calculate the tension T in the nail and the magnitude A of the force exerted by the hammer head on the block. The contacting surfaces at A are sufficiently rough to prevent slipping. T=? Lb.   A=?Lb.

I got -133.344Kn but that was incorrect. Need help and the answer has to be to three decimal points.

Current Attempt in Progress In the special position shown for the log hoist, booms AF and EG are at right angles to one another and AF is perpendicular to AB. If the hoist is handling a log weighing 4380 lb, compute the magnitudes of the forces supported by the pins at A and D in this one position due to the weight of the log. 50° A = Answers: i D= i 15" A 13' 26" B eTextbook and Media E C lb lb R 10" 3' -"( 14' G

Please draw FBD and solve. The solution should be handwritten Only.

1) Determine the force acting on the hydraulic cylinder BC. Express your answer in pounds to three significant figures. 2) Determine the horizontal and vertical components of reaction at the pin A(Ax,Ay). Express your answers in pounds to three significant figures separated by a comma.

The weight of the limb is W=15 lbs.The contact of foot with the ground can be modeled as a pin/hinge here. Determine the reaction force of the ground and the reaction at the knee joint and its direction/angle θ. Note: use the thee force member condition to find the angle of FK.Q4.As it’s been shown in the below figure,a person is using an exercise machine. Points A and B correspond to the shoulder and elbow joints, respectively. Relative to the person, the upper arm (AB) is extended toward the left (x-direction) and the lower arm (BC) is extended forward (z-direction). At this instant, the person is holding a handle that is connected by a cable to a suspending weight. The weight applies an upward (in the y-direction) force with magnitude F on the arm at point C. The lengths of the upper arm and lower arm are AB̅̅̅̅= 20cm and BC̅̅̅̅= 25cm, respectively, and the magnitude of the applied force is F = 400 N.Determine the components of reaction developed at the shoulder joint A When the…