Physics (AS & A Level) · Feb / March 2023 · Paper 22 · Question 3

A uniform beam AB is attached by a hinge to a wall at end A, as shown in Fig. 3.1. hinge A B 0.15 m 12 N W 17 N C 0.35 m beam horizontal string 50° Fig. 3.1 (not to scale) The beam has length 0.50 m and weight W. A block of weight 12 N rests on the beam at a distance of 0.15 m from end B. The beam is held horizontal and in equilibrium by a string attached between end B and a fixed point C. The string has a tension of 17 N and is at an angle of 50° to the horizontal.

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