Answer:
The value of "k" (the constant of proportionality)
Step-by-step explanation:
First of all, we can define the parameters as:
Length of the steel beam = “L”
Weight of the steel beam = “W”
And we need a constant of proportionality, we define as “K”
Next step, with these parameters, we write the equation that represents the relationship:
W = K * L
So the information you would need is the value of “K”.