You have 5kg of Aluminum and 5kg of Steel. You can make whatever cross section beam you want with these materials. If you have to make a cantilever beam 1m long with a load at the end and you want to minimize the deflection. What material would you use?

Hint: Aluminum vs. Steel Material Properties

I’d use the steel just because it has a higher Young’s modulus, and probably use an I-beam cross section. Right?