If $\mathbf { r } ( t ) = t ^ { 2 } \mathbf { i } + 3 t \mathbf { j } + e ^ { t } \mathbf { k }$

question 82

Essay

If $\mathbf { r } ( t ) = t ^ { 2 } \mathbf { i } + 3 t \mathbf { j } + e ^ { t } \mathbf { k }$ , find the acceleration vector and the tangential component of the acceleration vector.

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