1 A 1.50-kg bucket of water is tied by a rope and whirled in a circle with a radius of 1.00 m. At the bottom of the circular loop, the speed of the bucket is 4.00 m/s. Determine the acceleration, the net force and the individual force values when the bucket is at the top of the circular loop. Draw FBD. 2. a. What is the maximum effective weight that a 70kg man will feel on a rollercoaster loop of radius 15m moving at a speed of 20m/sec? b. What minimum speed will allow him to feel weightless on the same rollercoaster? Where is this most likely to occur? Draw FBD