Q3. Find the resultant of the system of forces shown in the figure below using vector addition. 35 N 30 N Anference axes 90 50 N 15 N Space diagramQ4. Figure below shows a spanner being used to loosen a nut. Determine the turning effect on the nut. Solve using moments. BO N 200 milt me 90 s = effective lengthQ 5) Define Center of Gravity. What could be the possible reasons for Center of Gravity to shift for an aircraft in flight? A small aircraft has a total weight of 70kN. Its nose wheel is 3m in front of the main wheels. What is the longitudinal position of its center of gravity from nose wheel if the load on main wheel is 60kN? Solve by applying principle of Moments about the nosewheel. NOSE WHEEL Cof G MAIN WHEELS 70KN 60KN 3m