b) If the cross sectional area of the pipe is A - 192cm?, how much force does the person need to exert to stop the flow of water? F c) If the pipe, instead of heading to a blockage, routed above the person, like in the image below; P , V 3 P , V 1 Water Flow Assuming the cross sectional area of the pipe does not change, the pressure after the rise P3 will be (No answer given) + the pressure before the rise P1. The velocity of the flow 3 after the rise will be (No answer given) + the velocity before the rise V1.(For the following questions, ignore the effects of air pressure!) Water is flowing along a pipe at a speed of v1 - 4.41 m/s and at a pressure of Pi - 22.8 kPa. Suddenly, the water encounters a blockage; there is a person at the end of the pipe blocking the flow, as shown in the picture below: P,V P 2 Water Flow a) What is the pressure at the blockage point, P2, where the water has come to a complete stop? You may assume the density of water to be pw = 1000 kg/m- P2 kPa. b) If the cross sectional area of the pipe is A = 192cm, how much force does the person need to exert to stop the flow of water? F c) If the pipe, instead of heading to a blockage, routed above the person, like in the image below