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प्रश्न
The water sprinkler used for grass lawns begins to rotate as soon as the water is supplied. Explain the principle on which it works.
उत्तर
The rotation of water sprinklers used for grass lawns can be explained on the basis of Newton’s third law of motion. As soon as the water comes out of the sprinkler, it exerts an equal and opposite force on the sprinkler and it starts rotating.
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संबंधित प्रश्न
State the effects of a force applied on
- A non-rigid, and
- A rigid body.
How does the effect of the force differ in the two cases?
Which of the following is a contact force:
Is force needed to keep a moving body in motion?
Two equal and opposite forces act on a moving object. How is its motion affected? Give reason.
Name the S.I. unit of force and define it .
Explain the following:
Why do we jerk wet clothes before spreading them on a line?
The CGS unit of force is dyne:
∴1 N = __________ dyne
Gravitational force is a ______ force.
Does the force of gravitation exist between two astronauts in space?
Figure shows a car sticking to an electromagnet. Name the forces acting on the car. Which one of them is larger?
