1. The problem statement, all variables and given/known data A bucket of mass 1.60 kg is whirled in a vertical circle of radius 1.00 m. At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N. (a) Find the speed of the bucket. (b) How fast must the bucket move at the top of the circle so that the rope does not go slack? 3. The attempt at a solution I figured out A, the speed of the bucket to be 2.42 m/s but i dont understand how to find B.. can someone help please?