## sri_mulyani Group Title The surface of the water in a tank 2,5 m above its base. if there is a small hole at the base of the tank , water will flow out with velocity of??? 2 years ago 2 years ago

1. sheena101

did they give the radius of the base?

2. sri_mulyani

3. sheena101

ok sorry i though this would be similar to a calc problem. if it is then i suggest using derivatives to solve the problem. are you failiar with calculus?

4. hosein

Hi you can use Bernloli equation between two point A & B |dw:1332158745342:dw| $P _{0}+(1/2)\rho v^2=P _{0}+\rho gy$we now that velocity in top of water is negligible

5. hosein

i was forgot : here y=2.5

6. Taufique

|dw:1332170757662:dw| apply conservation of energy theorem: total mechanical energy at the top=total mechanical energy at the base Po(pressure energy)+0(kinetic energy)+$\rho$gh(potential energy)=Po(pressure energy)+1/2$\rho$V^2(kinetic energy)+0(potential energy)..... put the value in the above equation and get the value of V.

7. sri_mulyani

ok... thanks for answer..