The minute hand of a wall clock is 12cm long. Starting from the 12 o’clock position, the clock shows a time of 4:18p.m.
(i) Calculate the angular displacement of the minute hand in radians during this interval.
(ii) Find the distance moved by the tip of the minute hand along its circular path.
(iii) Assuming uniform motion of the minute hand, determine its average speed during this interval in cms−1.