The open-ended polyvinyl chloride pipe has an inner diameter of 4 in. and thickness of 0.2 in. It carries flowing water at 57psi pressure. If the flow of water within the pipe is stopped due to the closing of a valve, determine the state of stress in the walls of the pipe. Neglect the weight of the water. Assume the supports only exert vertical forces on the pipe. (Picture is a horizontal pipe on 6 supports)