The position of a cyclist is recorded as follows:
Time (s): 0, 2, 4, 6
Position (m): 0, 8, 16, 24
Which statement correctly describes the cyclist’s motion?
a) The motion is uniform with instantaneous speed 8m/s.
b) The motion is non-uniform because the acceleration is non-zero.
c) The motion is uniform with instantaneous speed 4m/s.
d) The motion is uniform with instantaneous speed 6m/s.