A bucket tied at the end of a `1.6m` long string is whirled in a verticle circle with constant speed. What should be the minimum speed so that the water from the bucket does not spill, when the bucket is at the highest position `(Takeg=10m//s^(2))`
A. `4m//s`
B. `6.25m//s`
C. `16m//s`
D. none of the above