A cyclist rides at a constant speed of 6m/s around a circular track of radius 40m. Answer the following:
a. (i) Explain whether the cyclist is undergoing acceleration during this motion.
b. (ii) State the direction of this acceleration when the cyclist is at the easternmost point P of the track.
c. (iii) If the cyclist continues with the same speed on a different track of radius 20m, will the magnitude of the acceleration be the same, greater or smaller? Give a qualitative reason for your answer.