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force acting on it is zero: ΣF⃗ = 0. It’s helpful to split the net force up into its horizontal (x) and vertical (y) components: We can rewrite sinθ as cosθtanθ to get: Eq. 2 Analysis with Calculus Now it’s useful to re-write θ in terms of x and y. We can do this by realizing that the tangent of