Centripetal force and Coriolis force?

In summary, the conversation discusses the creation of an animation to show the position of an object moving in a straight line from the perspective of someone on a rotating platform. It is unclear if the reference frame is also rotating, but either way, the object will appear to experience a force due to the non-constant velocity. This force is not a simple centrifugal or coriolis force, but rather a complex combination of the two. The animation will show a cycloid or double spiral path, depending on the type of rotation.
  • #1
Loai27
1
0

Homework Statement



Suppose that you are on a rotating platform, going around with frequency w a distance
r from the center. Suppose that you are watching an object that moves in a straight line.
Produce an animation that shows the position of the object from your perspective. Does
this object seem to be experiencing a force?

Please answer with animation and MATLAB OR MATHEMETICA source code?!??

Note: I have an idea of what's happening but how would I go about creating this simulation?
Is my attempt right? Is it the Coriolis effect?

The Attempt at a Solution



yes this object will experience a force = m* w^2 *r;

that is centripetal acceleration which is the pseudo force experienced on the object of mass m.
 
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  • #2
The question is unclear. Is the origin of the reference frame going in a circle but maintaining a constant orientation, or is the reference frame also rotating?
Either way, the observed object will not appear to have constant velocity, therefore will appear subject to a force. However, the nature of that force will be somewhat complex. It is not a simple centrifugal or coriolis force. In the nonrotating frame, the apparent path will be a cycloid of some sort (could be prolate or curtate). For the rotating frame, some kind of double spiral.

As to centrifugal versus Coriolis, centrifugal force arises when the observer moves tangentially to the axis of rotation of the reference frame, while Coriolis arises when the observer moves radially with repect to the axis of the rotating frame.
 

Related to Centripetal force and Coriolis force?

1. What is centripetal force?

Centripetal force is a force that acts on an object moving in a circular path, directed towards the center of the circle. It is responsible for keeping the object moving in a curved path rather than a straight line.

2. How is centripetal force different from centrifugal force?

Centripetal force is the force that keeps an object moving in a circular path, while centrifugal force is a perceived outward force that appears to be acting on an object moving in a circular path. In reality, centrifugal force is just the tendency of an object to continue moving in a straight line rather than following the curved path.

3. What is the Coriolis force?

The Coriolis force is an inertial force that arises due to the rotation of the Earth. It causes objects moving on the surface of the Earth to appear to curve to the right in the northern hemisphere and to the left in the southern hemisphere.

4. How does the Coriolis force affect weather patterns?

The Coriolis force plays a significant role in creating the global wind patterns and the rotation of hurricanes and typhoons. It deflects the movement of air masses and creates the characteristic clockwise and counterclockwise rotation of weather systems in the northern and southern hemispheres, respectively.

5. Can the Coriolis force be observed in everyday life?

Yes, the Coriolis force can be observed in everyday life, such as the movement of water in a draining sink or bathtub. In the northern hemisphere, the water appears to rotate counterclockwise, while in the southern hemisphere, it appears to rotate clockwise, due to the Coriolis force acting on the water as it drains.

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