Q4/ The jib crane is supported by a pin at C and rod AB. If the load has a mass of 3 Mg with its center of mass located at G, determine the horizontal and vertical components of reaction at the pin C and the force developed in rod AB on the crane when x = 6 m. [20 Marks] 32 m
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- The 1200-lb homogeneous block is placed on rollers and pushed up the 10 incline at constant speed. Determine the force P and the roller reactions at A and B.The figure is a model for member CDE of the frame described in Prob. 4.10. Draw the FBD of the member, neglecting its weight. Count the unknowns.The homogeneous bar AB weighs 25 lb. Determine the magnitudes of the forces acting on the bar at A and B. Neglect friction.
- The figure shows a three-pin arch. Determine the horizontal component of the pin reaction at A caused by the applied force P.The jib crane is designed for a maximum capacity of 14 kN, and its uniform I-beam has a mass of 270 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 4.9 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 2.4 m? (b) What is the value of R when x = 4.5 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 1.6 m Questions: 25° 14 KN -3.5 m (a) If x = 2.4 m, R = (b) If x= 4.5 m, R= (c) The minimum value for R = i (d) The pin should be designed to hold i KN KN kN at x = i kN. mThe jib crane is designed for a maximum capacity of 9 kN, and its uniform I-beam has a mass of 260 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 3.4 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 1.6 m? (b) What is the value of R when x = 3.2 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 32° x m 9 KN 1.0 m 2.6 m Questions: (a) If x= 1.6 m, R= i (b) If x= 3.2 m, R = i (c) The minimum value for R = i (d) The pin should be designed to hold i KN KN kN at x = i kN.
- The jib crane is designed for a maximum capacity of 14 kN, and its uniform I-beam has a mass of 270 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 4.0 m. On the same set of axes, plot the x- and y-components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (You can disregard the plot, I only need a, b, c, and d)The jib crane is designed for a maximum capacity of 6 kN, and its uniform I-beam has a mass of 230 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 4.0 m. On the same set of axes, plot the x- and y- components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work. (a) What is the value of R when x = 2.0 m? (b) What is the value of R when x = 3.3 m? (c) Determine the minimum value of R and the corresponding value of x. (d) For what value of R should the pin at A be designed? 34° x 1.3 m 6 kN -2.9 mThe jib crane is designed for a maximum capacity of 7 kN, and its uniform I-beam has a mass of 160 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 3.6 m. On the same set of axes, plot the x- and y-components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work.(a) What is the value of R when x = 0.9 m?(b) What is the value of R when x = 3.1 m?(c) Determine the minimum value of R and the corresponding value of x.(d) For what value of R should the pin at A be designed?
- The bent rod is supported at A, B, and C by smooth journal bearings. The rod is subjected to the force F = 620 N . The bearings are in proper alignment and exert only force reactions on the rod. Determine the components of reaction at the bearing AA using scalar notation. Determine the components of reaction at the bearing BB using scalar notation. Determine the components of reaction at the bearing CC using scalar notation.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.Q1/ The 500-kg uniform beam is subjected to the three external loads shown. Compute the reactions at the support point O. The x-y plane is vertical. 30° 15 kN-m 3 kN C 1.4 kN 1.2 m- 1.8 m 1.8 m Q2/ A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 100 lb and a small 20-lb spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 19 lb, the scale A reads 67 lb. What is his correct weight? Q3/ When the 0.05-kg body is in the position shown, the linear spring is stretched 10 mm. Determine the force P required to break contact at C. Complete solutions for (a) including the effects of the weight and (b) neglecting the weight. P 60 mm 60 mm A 40 mm B www k = 1750 N/m 40 mm