If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (-5t2 + 12)i + 
j
A. v = (-10t)i - 
j
B. v = (-10)i + 
j
C. v = (-10t)i + 
j
D. v = 
i + (-10t)j
Answer: C
Mathematics
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