bes 5

A wide flange section for a 5 meter long column ( hinged at both ends ) has the following properties :
Cross sectional area: 8,000 mm2
Radius of gyration, rx= 100mm
Radius gyration, ry= 50mm
Modulus of elasticity, E = 200,000 MPa
Determine the Euler critical load

mechanice

pls help me for this question .. thanks

The block of weight W is hang from a pin at A . The bars AB and AC are pinned to the support at B and C. The areas are
800mm^2 for AB and 400mm^2 for AC . Neglecting the weigth of the bars determine the maximum safe value of W if the
Stress in AB is limited to 110Mpa and that in AC to 120Mpa