Centripetal or centrifugal? The Physics of Water Escape in a Washing Machine

In summary, during the spin cycle of a washing machine, the water is flung out of the clothes by either a centripetal or centrifugal force, depending on the terminology used. However, the water is ultimately drained through the holes in the inner tub, regardless of the force at play.
  • #1
laurenbaboran
10
0

Homework Statement



13. Why does the water in a washing machine escape through the little holes during the spin cycle?
a The water is flung out of the clothes by the centripetal force.
b The water is flung out of the washer by the centrifugal force.
c The water is sucked out of the little holes by the washer.
d The washer cannot force the water into a circle because of the holes.



Homework Equations



I believe it's either a or b.

The Attempt at a Solution


I can't narrow it down between the tow. Help is very appreciated!
 
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  • #2
nvm I got it!
 
  • #3
BTW don't let anyone tell you that the term 'centrifugal force' is wrong. Richard Feynman used it in his (recently posted) lecture series, and he kind of knew his physics. :smile:
 
  • #4
Shouldn't the answer be "d"? If the outer tub is draining, then the holes on the inner tub above the outer tub water line can't produce a centripetal force on the water, and the water's momentum causes it to flow through the holes into the outer tub.
 
  • #5
rcgldr said:
Shouldn't the answer be "d"? If the outer tub is draining, then the holes on the inner tub above the outer tub water line can't produce a centripetal force on the water, and the water's momentum causes it to flow through the holes into the outer tub.

That's my vote too, for what it's worth.
 

Related to Centripetal or centrifugal? The Physics of Water Escape in a Washing Machine

1. What is the difference between centripetal and centrifugal force?

Centripetal force is a force that pulls objects towards the center of a circular path, while centrifugal force is a fictitious force that appears to push objects away from the center of a circular path. Centripetal force is necessary to keep an object moving in a circle, while centrifugal force is a result of an object's inertia.

2. How are centripetal and centrifugal forces related?

Centripetal and centrifugal forces are two aspects of the same force, known as the centripetal force. Centripetal force acts towards the center of a circular path, while centrifugal force acts in the opposite direction. Together, they keep an object moving in a circular path.

3. What are some real-life examples of centripetal and centrifugal forces?

Some examples of centripetal forces include the gravitational force that keeps planets in orbit around the sun and the tension in a string holding a spinning object in place. Examples of centrifugal forces include the force felt when turning a car around a corner or the force pushing water outwards in a spinning washing machine.

4. How do centripetal and centrifugal forces affect the motion of objects?

Centripetal force causes an object to move in a circular path, while centrifugal force can cause an object to move away from the center of the circle. These forces can change the speed and direction of an object's motion, depending on the magnitude and direction of the forces.

5. What are the applications of centripetal and centrifugal forces in science and technology?

Centripetal and centrifugal forces have many practical applications, including in the design of roller coasters, centrifuges used in laboratories, and the operation of satellites in orbit around the Earth. These forces are also important in the study of planetary motion and the dynamics of rotating systems.

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