Problem $7\mathrm{.}3\mathrm{.}27.$

$7\mathrm{.}3\mathrm{.}27.$ The welded tubular frame is secured to the hor$-$

izontal xy plane by a ball$-$and$-$socket support at A and re$-$

ceives support from a loose$-$fitting ring at B as shown i$-$

E$7\mathrm{.}3\mathrm{.}27.$ If the weight of the frame is negligible and it is in

equilibrium,

a$.$ what loads act on the frame at A $?$

b$.$ what loads act on the frame at B $?$

E$7\mathrm{.}3\mathrm{.}27$