Water sprinkler used for grass lawns begins to rotate as soon as as the water is supplied. Explain the principle on which it works

cbse
cbse-class-9-science
force-laws-of-motion

#1

Water sprinkler used for grass lawns begins to rotate as soon as as the water is supplied. Explain the principle on which it works.

Answer: The working of the rotation of sprinkler is based on third law of motion. As the water comes out of the nozzle of the sprinkler, an equal and opposite reaction force comes into play. So the sprinkler starts rotating.