35mm 干货 B G 電話:20mm Mum001 是 5.46 45mm、

Please solve with a free body diagram, Strictly don't copy the answer. (Only Handwritten solutions are allowed) Question: 125g of liquid is contained in a cup. The center of mass is G. If the vertical force F acts on the edge of the cup, so that it lengthens. Find the magnitude of this force. As soon as it is about to tilt, the vertical reaction force acts on A.