Speed From a Position Vector
A particle moves in a plane with position vector $$\mathbf{p}(t) = (3t^2 - 2t, 4t + 1)$$. At $$t = 2$$, what is the speed of the particle?
A
$$\sqrt{26}$$
B
$$4\sqrt{26}$$
C
$$26$$
D
$$2\sqrt{26}$$
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