Mathematics

Mathematics

Problem

A particle moves in the plane with velocity vector v(t)=⟨f(t),g(t)⟩\mathbf v(t)=\langle f(t),g(t)\rangle. At time t=1t=1 the particle is located at r(1)=⟨3,5⟩\mathbf r(1)=\langle 3,5\rangle. Which of the following expressions gives the particle’s yy–coordinate at time t=4t=4? a) 5+∫14∣g(t)∣ dt5+\displaystyle\int_{1}^{4}|g(t)|\,dt b) 5+∫14g(t) dt5+\displaystyle\int_{1}^{4} g(t)\,dt c) 3+∫14g(t) dt3+\displaystyle\int_{1}^{4} g(t)\,dt d) 5+∫04g(t) dt5+\displaystyle\int_{0}^{4} g(t)\,dt

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