- #1
TexasBB12
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Homework Statement
Launch a .8 kg ball from a spring cannon in order to hit a target 25m away, the cannon fires at 45 degrees relative to the ground, what is the initial velocity necessary for the ball to make the distance. spring constant is 425 N/m.
Homework Equations
fspring=-kx
The Attempt at a Solution
I really don't know how to get started on this.