Principle of superposition

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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...
 

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