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## Homework Statement

distance = 0.8meters

angle = 55°

gravity = [itex]9.81m/s^2[/itex]

[itex]\V_0[/itex] = ?, assuming that it leaves and falls back on the same horizontal plane.

**The attempt at a solution**

So we know for a fact that the initial velocity is supposed to be [itex]2 m/s[/itex], according to the book at least.

I tried using the formula [itex] R = \frac{V_0^2 sin2\theta}{g} [/itex] but that gives me a completely different number.

I've discarded the use of component formulas since I'd require initial velocity for those. I'd like to say that I believe that the initial velocity on X is different to the initial velocity on Y since it's not 45°, but I get the feeling that doesn't matter. I'm stuck and frustrated on this relatively simple problem and can't figure it out for the life of me.

I'm also trying to get the hang of this Latex thing :p

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