1. The problem statement, all variables and given/known data A fireman's hose acting as a water cannon, directs 100 litres/s (100 kg/s) of water horizontally at your chest at speed 5 ms-1. Assuming water essentially falls to the ground after hitting your chest (rather than say reflecting horizontally backwards), what horizontal force will you feel (in N) 2. Relevant equations Impulse = change in momentum = Ft p = mv 3. The attempt at a solution Hello. I do not know where to start from in this question. How do you get the mass from 100 litres/s and how would you to calculate force when not given a value for time for impulse? Help is greatly appreciated!