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  3. let r(t) = 2t ,4t2 ,2t be a position function for

Let r(t) = 2t ,4t2 ,2t be a position function for some object. (a) (2 pts) Find...

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Basic Math

Let r(t) = 2t ,4t2 ,2t be a position function for someobject.

(a) (2 pts) Find the position of the object at t = 1. (b) (6pts) Find the velocity of the object at t = 1.

(c) (6 pts) Find the acceleration of the object at t = 1. (d) (6pts) Find the speed of the object at t = 1.

(e) (15 pts) Find the curvature K of the graph C determined byr(t) when t = 1.

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