Find the speed and the length of the two dimensional curve r(t) = (77 sint, 2...

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Find the speed and the length of the two dimensional curve r(t) = (77 sint, 2 sint, 9cost) 0t2 Give an exact answer using radicals as needed. |v(t)| = L = Given the following trajectory, r(t) = (t 4,2t) for t0 + find the normal aN and tangential a components of acceleration where a(t) =NNT Find the speed and the length of the two dimensional curve r(t) = (77 sint, 2 sint, 9cost) 0t2 Give an exact answer using radicals as needed. |v(t)| = L = Given the following trajectory, r(t) = (t 4,2t) for t0 + find the normal aN and tangential a components of acceleration where a(t) =NNT