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Find the curvature of the path and determine the tangential and the normal components of acceleration...

Find the curvature of the path and determine the tangential and the normal components of acceleration of the following curve at the point t.

r(t) = 2/3 ((1+t)^3/2) i + 2/3 ((1−t)^3/2) j + t √ 2k.

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