Question: please write clearly each step The position vector r describes the path of an object moving in space. Position Vector Time r(t)=3ti+j+%t2k t=4 (a) Find

please write clearly each step

The position vector r describes the path of an object moving in space. Position Vector Time r(t)=3ti+j+%t2k t=4 (a) Find the velocity vector v(t}, speed 5(1'), and acceleration vector a(t} of the object. VG\") = SU') = a(t) = (b) Evaluate the velocity vector and acceleration vector of the object at the given value of t. V(4) = a(4) =

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