Section Check In Mechanics: Rigid Bodies – Questions Use unless instructed otherwise. 1.* Calculate the moment of the force shown at A. (i) 2.* Calculate the sum of the moments about X. DISCLAIMER This resource was designed using the most up to date information from the specification at the time it was published. Specifications are updated over time, which means there may be contradictions between the resource and the specification, therefore please use the information on the latest specification at all times. If you do notice a discrepancy please contact us on the following email address: 4 3.* The diagram shows the forces acting upon a uniform rectangular lamina measuring m by 3 30 m. The N force is the weight of the lamina. Calculate the sum of the moments about X. 4 4.* The diagram shows the forces acting upon a uniform rectangular lamina measuring m by 3 30 m. The N force is the weight of the lamina. Calculate the sum of the moments about Y. 5.* A uniform rod AB is freely hinged at B to a vertical wall. It is held horizontally by a light inextensible string attached at A. The forces are shown in the diagram, where T is the tension in the string, is the weight of the rod and and are the components of the W H V reaction at the hinge. Show that the magnitude of the reaction at the hinge is . 300 5 6.* A uniform rod AB of weight N and length m is supported in a horizontal position by two 1 4 smooth pivots at C and D where AC = m and AD = m. A particle of weight is placed on W
Section Check In – Mechanics: Rigid Bodies Questions Use unless instructed otherwise. 1.* Calculate the moment of the force shown at A. (i) 2.* Calculate the sum of the moments about X. DISCLAIMER This resource was designed using the most up to date information from the specification at the time it was published. Specifications are updated over time, which means there may be contradictions between the resource and the specification, therefore please use the information on the latest specification at all times. If you do notice a discrepancy please contact us on the following email address: 3.* The diagram shows the forces acting upon a uniform rectangular lamina measuring 4 m by 3 m. The 30 N force is the weight of the lamina. Calculate the sum of the moments about X. 4.* The diagram shows the forces acting upon a uniform rectangular lamina measuring 4 m by 3 m. The 30 N force is the weight of the lamina. Calculate the sum of the moments about Y. 5.* A uniform rod AB is freely hinged at B to a vertical wall. It is held horizontally by a light inextensible string attached at A. The forces are shown in the diagram, where T is the tension in the string, W is the weight of the rod and H and V are the components of the reaction at the hinge. Show that the magnitude of the reaction at the hinge is . 6.* A uniform rod AB of weight 300 N and length 5 m is supported in a horizontal position by two smooth pivots at C and D where AC = 1 m and AD = 4 m. A particle of weight W is placed on
476109-mechanics-rigid-bodies.docx