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Learning Goal: To determine the forces acting on a bar moving with curvilinear translation. A 24-kg bar is guided by two slotted tracks attached at the ends A and B so that its center of mass moves along a curved path without rotating, as shown in figure (Figure 1), where L₁ = 30 cm, L = 50 cm, and a 58". At the instant shown, the radius of curvature of the pathkis p2.4 m, the speed of the bar along the path is u = 3.2 m/s, the magnitude of the acceleration is a 12 m/s², and the direction of motion is 828 above the positive z-axis. The guide forces at A and B act normal to the direction of motion, and there is a driving force applied at the center of mass of the bar in the - direction. What are the magnitudes of the forces exerted on the bar? The motion is in a horizontal plane 1 of 2 Figure 11 SA Part A Use the equations of motion for curvilinear translation. What is the acceleration of the bar in the normal direction? Express your answer to three significant figures with appropriate units. View Available Hint(s) O₂ - 4.27 Subient Previous Answers ✓ Correct Part B What is the acceleration of the center of mass along the direction of motion? Express your answer to three significant figures with appropriate units. ▸ View Available Hint(s) 11.2 Previous Answers Subnic ✓ Correct
Learning Goal To determine the forces acting on a bar moving with curvilinear translation. A 24-kg bar is guided by two slotted tracks attached at the ends A and B so that its center of mass moves along a curved path without rotating, as shown in figure (Figure 1), where L₁30 cm. L-50 cm, and a-58. At the instant shown, the radius of curvature of the path is p 2.4 m, the speed of the bar along the path is ty-3.2 m/s, the magnitude of the acceleration is a 12 m/s, and the direction of motion is 28 above the positive z-axis. The guide forces at A and B act normal to the direction of motion, and there is a driving force applied at the center of mass of the bar in the direction. What are the magnitudes of the forces exerted on the bar? The motion is in a horizontal plane Figure <1002 > Part C The tree-body and kinetic diagrams for the bar are shown in (Egure 2) What is the magnitude of the driving force applied to the center of mass? Express your answer to three significant figures with appropriate units View Available Hint(s) F-305 N TURIME Previous Answers ✓ Correct Part D What is the total force acting in the normal direction? Express your answer to three significant figures with appropriate units. View Available Hint(s) EF-245.533 N Submit Previous Antwers Request Answer X Incorrect; Try Again; 3 attempts remaining