Tiêu đề Feb-March_2025_9702_22_QP - Crack A Level.pdf ✅

4 © UCLES 2025 9702/22/F/M/25 2 (a) State the principle of moments. ................................................................................................................................................... ................................................................................................................................................... ............................................................................................................................................. [2] (b) A solid plastic cylinder floats in water. It is used to support one end of a horizontal uniform beam AB as shown in Fig. 2.1. A B P cylinder hinge ground water uniform beam, weight 1700N 6.0 m 5.0m x Fig. 2.1 (not to scale) The beam has length 6.0m and weight 1700N. The beam is attached to solid ground with a hinge at end A. The cylinder is floating vertically in the water. The top of the cylinder is attached at its centre to the beam at a horizontal distance of 5.0m from end A. The cylinder applies a vertical force of 1300N to the beam. A person of weight 660N stands on the beam at point P. The beam AB is in equilibrium. (i) By taking moments about end A, determine the distance x from A to P. distance = ......................................................m [3] * 0000800000004 * , , ĬÍĊ®Ġ ́íÈõÏĪÅĊÝû·Ā× Ĭ3⁄4ôôÍġññÎøÿđÄĬþ»ĖĂ ĥąĕĕμÕåĕμμąÅÅÕĥõõÕ DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN DO NOT WRITE IN THIS MARGIN