Originally Posted by **shai** can you post your attempt? |

i am not sure how to solve the equation though, so i dunno whether my final ans consistent with the author's working or not , can you help it ?

ok , by using online calculator , i found the ans v1 = 1.82m/s , which is same as the author's working. then , what does it mean ? Q1 = Q2 +Q3 ?

or Q1 +Q2 = Q3 ? means water can flow

in and out from reservoir 2 at same time or diffferent time ?