# Principle of superposition

## Homework Statement

Apply the principle of superposition to a beam to calculate or show beam deflection.

## Homework Equations

Maximum Deflection.

(WL^3) / (48EI)

Equation for possition two, when possition two is 3/4 or 1/4 of the total beam lengh

(Cant figure out the above)

## The Attempt at a Solution

I think i need to sum the two figure, however, cant get a figure for point two.

Think i need an equation to calculate deflection at a given point?

Thanks for any help...