UPSEE Solved Model Paper 7

Figures below show the position of minute hand of the clock

S o , the displacement of the minute hand, s = 8 cm
Time interval between 0600 hrs and 1830 hrs is 12 hr 30 minutes, i.e. 45000 seconds. Thus,
Average velocity =

Total‌displacement

Total‌time‌taken

⇒ vavg =

8‌cm

4500s

= 1.8×10−4 cm/s
Hence, option 'B' is correct.