Answer:
969.68N
Step-by-step explanation:
d₁=0.04 m A₁=


d₂=0.02 m A₂=


Q=1.2m³/min Q=1.2/60=0.02m³/s
using continuity equation
Q₁=A₁v₁
v₁=Q₁/A₁=0.02/0.00125=16m/s
Q₂=A₂v₂
v₂=Q₂/A₂=0.02/0.00031=64.5m/s




Force on the nozzle=F_{outlet}-F_{inlet}
= 1289.68-320
=969.68N