Awater main pipe of diameter 10 cm enters a house 2 m below ground. a smaller diameter pipe carries water to a faucet 5 m above ground, on the second floor. water flows at 2 ms1 in the main pipe and at 7 ms on the second floor. find the diameter of the smaller diameter pipe. (i) [4 marks (ii) if the gauge pressure in the main pipe is 2x10 pa, find the gauge pressure in the pipe on 15 marks) (ii) discuss if it is possible to carry water to a faucet 17 m above ground, on the roof-top by 15 marks the second floor. extending the smaller diameter pipe