A stone is attached to a rope of length 1m and is swung in a circle. Beginning from rest, it consists of angular acceleration of 3 rad/s^2. Determine the magnitude of the net acceleration after 2/3 seconds? Keep in mind the radial and also the tangential components.
i) 3 m/s^2
ii) 4 m/s^2
iii) 5 m/s^2
iv) 6 m/s^2