3-m-high large tank is initially filled with water. the tank water surface is open to the atmosphere, and a sharp-edged 10-cm-diameter orifice at the bottom drains to the atmosphere through a horizontal 80-m-long pipe. if the total irreversible head loss of the system is determined to be 1.5 m, determine the initial velocity of the water from the tank. disregard the effect of the kinetic energy correction factors.

The initial velocity of the water from the tank is 5.42 m/s

Explanation:

By applying Bernoulli equation between  point 1 and 2

At the point 1

P₁=0  ( Gauge pressure)

V₁= 0 m/s

Z₁=3 m

At point 2

P₂=0  ( Gauge pressure)

Z₂= 0 m/s

Now by putting the values

V₂= 5.42 m/s

The initial velocity of the water from the tank is 5.42 m/s

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement