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 Homework Statement:
 What is the generalized equation of the initial launch speed for a spring launcher at different angles? Use PE of the spring, mass, and angle in the equation.
 Relevant Equations:

Ei = Ef
PEspring = 1/2 kx^2
KE = 1/2 mv^2
I am really stuck and confused. I just need the equation. Thanks!
Here is my attempt at solving:
PEspring = 1/2m(Vx^2 +Vy^2)
Here is my attempt at solving:
PEspring = 1/2m(Vx^2 +Vy^2)
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