Question: In r(t) is the position of a particle in space at time t. Find the angle between the velocity and acceleration vectors at time t

In r(t) is the position of a particle in space at time t. Find the angle between the velocity and acceleration vectors at time t = 0. r(t) = =a (1 + 1)/i + (1 - 1)/2j + 9

r(t) = =a (1 + 1)/i + (1 - 1)/2j + 9 tk

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