1) Average velocity = Total Displacement
Total time
Here, Total displacement is equal to "10cm"
Because it is the shortest distance
And , Total time is "5 sec"
by putting this values in formula you will get
2cm/s
2) Average Speed = Total distance travelled
Total time taken
Total distance for a circle =2πr
but here , distance will be 2πr/2
And time will be 5 sec
By putting this values in the formula you will get
πr /5 = 2π