A hose ejects water at a speed of 2m/s through a hole of area 0.01m2.if the water strikes a wall normally,calculate the force on the wall in Newtons,assuming the velocity of water nomal to wall is zero after collision.

Answer 1

Force = (mass flow rate)(water velocity)

mass flow rate = (water density)*(water velocity)*(hole area) = 1000*2*0.02 = 40 kg/s

Solve for Force

Answer 2

40 N