1.If an object is stationary (or moving with constant velocity) which statement best describes the situation. The sum of the forces acting on the object are zero. The sum of the moments acting on the object are zero. Both the sums of the forces and the moments acting on the object are zero. Both the sums of the forces and the moments acting on the object are constant.

Question 1 (25 points) Listen ▶ The block resting on the inclined plane shown has a mass of 60 kg. Determine the maximum and minimum value of P for which the block is in equilibrium.(fs = 0.35.) P Paragraph Block 20° B I U ✓ A/ O + v

Question 2 (25 points) ➡ Listen Find the cable tension and the reactions at A for the beam shown in the figure below. 800 NY 1.2 m T .3 m .2 m

Question 3 (25 points) Listen The 2225-N block shown in Figure is in contact with 25° incline. The coefficient of static friction is 0.4. Just start the block up the incline or a. Determine the force P for impending motion up the slope b. Determine the normal force between the block and the contact surface C. Assuming P=0, at What angle would the block have impending motion down the slope. Paragraph BI U ✓ A/ O + v

Question 4 (25 points) ➡ Listen The boom is supported by a cable and pin as shown. Neglect the size of the pulley at D. Find the reactions at C and the tension in the cable if W₁ = 35 kN and W₂ = 50 kN. A W₁ 1.2 m Paragraph V B W₂ B 0.3 m -1.5 mc T U ✓ 2.0 m A, T Ev ▶II Ev O + Re Ade Co

QUESTION 18 Find the coefficient of static friction us by using the equation (2).

P = 1030 N M = 98 Nm The two beams are shown below. Please have every item requested below. All plots must either be hand drawn or generated using MATLAB. If the graphs are created in any other way, then no credit will be received. Work must be presented in a reader friendly format. Please have the free body diagram with each consecutive diagram displayed below it, the same way the project summary page was designed. 1) Beam 1 a. Free body diagram b. Normal force diagram c. Shear force diagram d. Moment force diagram e. Shear force singularity function f. Moment force singularity function 2) Beam 2 a. Free body diagram b.Shear force diagram c. Moment force diagram d. Shear force singularity function e. Moment force singularity function

The force vector shown below is drawn to a scale of 1 grid space = 10 N. What is the magnitude of the force?

The members of a truss are connected to the gusset plate. If the forces are concurrent at point O, determine the magnitudes of F and T for equilibrium. Take θ= 90°.

You have designed a system to raise and lower a ladder to your attic. A one piece cable is attached to the ladder AB at point A. The mass of the ladder is 28 kg. Assume that the force due to the weight is applied at the center of the ladder as shown. All other dimensional information is shown on the picture. Determine the following (neglect the radius of the pulley and friction): (a) Draw the free body diagram and write your assumptions.