1. The problem statement, all variables and given/known data how to make μ = ρ v as in 8-41 ? 2. Relevant equations 3. The attempt at a solution since μ = viscocity , it has unit =( kgms^-2)s m^-2 , = kg(m^-1)(s^-1) ρ v = (kgm^-3)(ms^-1 ) = kg(m^-2)(s^-1) , the unit for LHS and RHS are not the same , can someone help pls ?