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If R(t) Is the Position Vector of a Particle in the Plane

Question 29

Multiple Choice

If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.
-Find the acceleration vector. r(t) = ( 6 cos t) i + ( 8 sin t) j


A) a = (-6 sin t) i + (-8 cos t) j
B) a = ( 6 sin t) i + ( 8 cos t) j
C) a = ( 6 cos t) i + ( 8 sin t) j
D) a = (-6 cos t) i + (-8 sin t) j

Correct Answer:

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