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# Vectors and Speed: Parametric Equations

APCALC-EXVYM1

Find the speed of a particle at $t=2$ seconds if the position of the particle is given by the parametric equations $x=t^2$ and $y=-t^3$.

A

$\sqrt{128}$

B

$4$

C

$4\sqrt{10}$

D

$40$