Answer:2.88 m/s
Step-by-step explanation:
Given
radius of circle r=0.85 m
At highest Point weight will Provide the centripetal Force
thus


where m is the mass of water in bucket




The hypotenuse can be solved by this formula. X^2 = 6^2 +6^2
X^2=64
Usually you cut it down to 8 but it wants the squared form so 64.
The answer for your question is 30 ..