Sarah attempts to do the popular physics trick of swinging a pail of water around in a vertical circle fast enough so the water doesn't spill out when the pail is upside down. If her arm is 0.497 meters long, what is the minimum speed with which she can swing the pail so the water does not spill out at the top of the path? (Assume that you may neglect the length of the pail).
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Step 1: Identify the forces acting on the pail of water at the top of the path: gravity acting downwards and the normal reaction force acting upwards. Show more…
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