Solution:
Because after 60 min i.e 1 hour displacement = 0 where distance = 0
also velocity = Displacement / Time
since displacement = 0 ∴ Average velocity = 0
Consider the motion of the tip of the hours hand of a clock. After 12 hours
1) Distance covered is zero 2) Displacement is zero
3) Average velocity is zero 4) Average speed is zero
Because after 60 min i.e 1 hour displacement = 0 where distance = 0
also velocity = Displacement / Time
since displacement = 0 ∴ Average velocity = 0