Problem $3(10$ points$)$: A wall mounted jib crane is shown in the figures. If

the maximum anticipated hoist load is $500$ kg $,$ select the lightest$-$weight steel

wide$-$flange beam that will safely support loading. Given ${}_{\text{a}\text{l}\text{l}\text{o}\text{w}}=150$MPa and

${}_{\text{a}\text{l}\text{l}\text{o}\text{w}}=75$MPa. The beam span is $A=3m.$

Problem $3(10$ points$)$: A wall mounted jib crane is shown in the figures. If

the maximum anticipated hoist load is $500$ kg $,$ select the lightest$-$weight steel

wide$-$flange beam that will safely support loading. Given ${}_{\text{a}\text{l}\text{l}\text{o}\text{w}}=150$MPa and

${}_{\text{a}\text{l}\text{l}\text{o}\text{w}}=75$MPa. The beam span is $A=3m.$