G Sarah attempts to do the popular physics trick of swinging a shallow pail of water around in a vertical circle with uniform circular motion so that the water doesn't spill out when the pail is upside down. If the distance from the bottom of the pail to her shoulder (the center of rotation) is 0.525 meters long, what is the minimum constant tangential speed that the pail bottom must have so that the water does not spill out at the top of the circular path