If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.r(t) = (cos 2t)i + (4 sin t)jFind the acceleration vector.
A. a(t) = (-4 cos 2t)i + (-16 sin t)j
B. a(t) = (-4 cos 2t)i + (-4 sin t)j
C. a(t) = (4 cos 2t)i + (-4 sin t)j
D. a(t) = (-2 cos 2t)i + (4 sin t)j
Answer: B
Mathematics
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A. 
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