The position vector r describes the path of an object moving in the xy-plane. Position Vector Point r(t) = 6 cos ti + 6 sin tj (3/2, 3/2) %3D (a) Find the velocity vector v(t), speed s(t), and acceleration vector a(t) of the object. v(t) = %3D s(t) = %3D a(t) = %3D (b) Evaluate the velocity vector and acceleration vector of the object at the given point. %3D a %3D

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