# Tangential Component of Acceleration Calculator

## Find tangential component of acceleration step by step

The calculator will find the tangential component of acceleration for the object, described by the vector-valued function, at the given point, with steps shown.

Related calculators: Curvature Calculator, Normal Component of Acceleration Calculator

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Find the tangential component of acceleration for $\mathbf{\vec{r}\left(t\right)} = \left\langle t, t^{2}, t^{3}\right\rangle$.

### Solution

Find the derivative of $\mathbf{\vec{r}\left(t\right)}$: $\mathbf{\vec{r}^{\prime}\left(t\right)} = \left\langle 1, 2 t, 3 t^{2}\right\rangle$ (for steps, see derivative calculator).

Find the magnitude of $\mathbf{\vec{r}^{\prime}\left(t\right)}$: $\mathbf{\left\lvert \mathbf{\vec{r}^{\prime}\left(t\right)}\right\rvert} = \sqrt{9 t^{4} + 4 t^{2} + 1}$ (for steps, see magnitude calculator).

Find the derivative of $\mathbf{\vec{r}^{\prime}\left(t\right)}$: $\mathbf{\vec{r}^{\prime\prime}\left(t\right)} = \left\langle 0, 2, 6 t\right\rangle$ (for steps, see derivative calculator).

Find the dot product: $\mathbf{\vec{r}^{\prime}\left(t\right)}\cdot \mathbf{\vec{r}^{\prime\prime}\left(t\right)} = 18 t^{3} + 4 t$ (for steps, see dot product calculator).

Finally, the tangential component of acceleration is $a_T\left(t\right) = \frac{\mathbf{\vec{r}^{\prime}\left(t\right)}\cdot \mathbf{\vec{r}^{\prime\prime}\left(t\right)}}{\mathbf{\left\lvert \mathbf{\vec{r}^{\prime}\left(t\right)}\right\rvert}} = \frac{18 t^{3} + 4 t}{\sqrt{9 t^{4} + 4 t^{2} + 1}}.$

The tangential component of acceleration is $a_T\left(t\right) = \frac{18 t^{3} + 4 t}{\sqrt{9 t^{4} + 4 t^{2} + 1}}$A.