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Mathematics 9 Online
OpenStudy (anonymous):

The position of a particle in motion in the plane at time t is X(t) = exp(5.2 t) I + exp(1 t) J. At time t = 0, determine the following: (a) The speed of the particle is: ??? (b) Find the unit tangent vector to X(t): ??? I + ??? J (c) The tangential acceleration: ??? (d) The normal acceleration: ???

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