Vector-Valued Functions
Position arrow, velocity arrow, acceleration · BC Calculus · greeting
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r(t) = ⟨x(t), y(t)⟩position vectortip traces curver′ = velocity|r′| = speedr″ = accelerationSpeed is scalar — velocity is vector
Owl: We'll differentiate component-wise, compare speed with velocity, and read tangent direction from r′.
You: —