If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector of the particle.

A. v(t) = (-8)i + j
B. v(t) = i + (-8t)j
C. v(t) = (-8t)i - j
D. v(t) = (-8t)i + j


Answer: D

Mathematics

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A.
B.
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