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Question 1: Four masses A, B, C, D as shown below are to be completely balanced. A Mass (kg) Radius (mm) 180 B 30

Question 1: Four masses A, B, C, D as shown below are to be completely balanced. A Mass (kg) Radius (mm) 180 B 30 240 C 50 120 D 40 150 The angle between B and C is 90. B and C make angles of 210 and 120 with D. Find the position and magnitude of A.

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