$.$ A truss structure is needed to support a hoist in a garage that services ordinary passenger vehicles. The hoist$$s major load is the engine block with a maximum mass of $300$ kg $($W$=300$g N$).$ The truss must span $6$ m overhead, from wall to wall $($L$=6$ m$).$ All diagonal members are to have the same cross$-$sectional area. Horizontal members at the top and bottom are to have the same cross$-$sectional area but may be different from that of the diagonals. The height of the truss must be less than $3$ m $($L$/2).$

Develop a layout of a $($statically determinant$)$ truss structure that will support the load with a factor of safety of $2.$ You can select any type of truss such as the following: