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Q1. In a set of sheer legs both front legs are 8 meters long and are fixed 5 meters apart on a horizontal base. The back stay of this concurrent non-coplanar force system is 15 meters long and is fixed on the same base at 8 meters measured linearly from the centre of the front legs shown in Fig Q1. The mass suspended by the system is 25 tonnes.

(a) Determine the magnitude and nature of the force in EACH of the following;

(i) the back stay. (8)

(ii) each front leg. (6)

(b) Define the term concurrent non-coplanar force system. (2)