So many things I don't want to think about at this hour -_- but thanks! a more step by step procedure would've been better but this way its better! thanks for your help!
Lets say a cone shaped funnel was made as I was draining water (due to coriolis effect) and that there is a given circumferential velocity (lets say its 5m/s) at a certain radius of the cone (lets say 15 cm), also the cone's vertex is inside the drain and is a certain distance (lets say this is...