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ABCD is a square; forces of 1 kg wt, 6 kg wt and 9 kg wt act in the directions AB, AC and AD respectively; find the magnitude of their resultant correct to the two decimal points.
Assume A be origin, AB be X axis i.e i be the unit vector and AD be y axis i.e j be the unit vectorso AC will be SO net force will be {1 i +6 ( )+ 9j }Xg{}X 9.8So magnitude 51.38 N
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