Find the acceleration of a particle with position r(t)=⟨cost,sint,t2⟩\mathbf{r}(t) = \langle \cos t, \sin t, t^2 \rangler(t)=⟨cost,sint,t2⟩ at t=0t = 0t=0.
⟨−1,0,2⟩\langle -1, 0, 2 \rangle⟨−1,0,2⟩
⟨1,0,2⟩\langle 1, 0, 2 \rangle⟨1,0,2⟩
⟨0,−1,2⟩\langle 0, -1, 2 \rangle⟨0,−1,2⟩
⟨0,0,2⟩\langle 0, 0, 2 \rangle⟨0,0,2⟩