Find the velocity, acceleration, and speed of an object with position function $\mathbf { r } ( t ) = 4 \sin t \mathbf { i } + \cos t \mathbf { j }$ for $t = \frac { \pi } { 4 }$. Sketch the path of the object and its velocity and acceleration vectors.

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The Answer of Find the velocity, acceleration, and speed of an object with position function $\mathbf { r } ( t ) = 4 \sin t \mathbf { i } + \cos t \mathbf { j }$ for $t = \frac { \pi } { 4 }$. Sketch the path of the object and its velocity and acceleration vectors.

Find the Velocity, Acceleration, and Speed of an Object with Position