The diagram (figure) shows a venturimeter, through which water is flowing the speed of water at X is 2cm/s. the speed of water at Y (taking `g=1000cm//s^(2)`) is

Explanation

By using Bernoulli's principle
`P_(1)+1/2 rhov_(1)^(2)=P_(2)+1/2rhov_(2)^(2)`
`impliesP_(1)-P_(2)=1/2 rho(v_(2)^(2)-v_(1)^(2))`
`impliesrho gh =1/2 rho (v_(2)^(2)-v_(1)^(2))`
Putting the values in equation
`1000xx0.51=1/2(v_(2)^(2)-2^(2))impliesv_(2)=32 cm//s`