11.a physics student swings a pail of water in a vertical circle 1.0

11.A physics student swings a pail of water in a vertical circle 1.0 m in radius at a constant speed.  If the water is NOT to spill on him/her:

(A)  calculate the minimum speed of the pail of water?

 

(B)  calculate the maximum time per revolution (period) of the swing?