Exploring Circular Motion: Understanding the Behavior of a Conical Pendulum

In summary, the conversation discusses the factors that affect the movement of a rubber bung in a horizontal circle. It is mentioned that the string cannot be horizontal due to the force of tension and the necessary centripetal force for circular motion. The equation for the vertical forces acting on the bung is also mentioned, and it is noted that the resultant force must point towards the center of the circle for the object to move in a circular path.
  • #1
Hugofung
2
0
Such as the figure
c47166411v146.png


Why the string could not be horizontal when the rubber bungis moving in a horizontal circle?
Only moving at conical pendulum?

By the way, if tension is equal to weight(W), have any conclusion?
 
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  • #2
Why the string could not be horizontal when the rubber bungis moving in a horizontal circle?

Write an equation for the vertical forces acting on the bung. Set θ = 90 and see what happens.
 
  • #3
What do you know about the force that is required to make an object move in a circle?
 
  • #4
andrevdh said:
What do you know about the force that is required to make an object move in a circle?
centripetal force
 
  • #5
Correct. That is the resultant force on the object needs to point to the centre of the circle.
In this case it means that the resultant of the two vectors must point to the center of
the circle. If the string could be horizontal where would the resultant lie?
 

FAQ: Exploring Circular Motion: Understanding the Behavior of a Conical Pendulum

1. What is circular motion?

Circular motion is the movement of an object along a circular path. This means that the object maintains a constant distance from a central point while continuously changing its direction.

2. What are some examples of circular motion?

Some examples of circular motion include the motion of planets around the sun, the rotation of a ceiling fan, and the motion of a car around a roundabout.

3. What is the difference between circular motion and rotational motion?

Circular motion refers to the movement of an object along a circular path, while rotational motion refers to the spinning or turning of an object around an axis. In circular motion, the object is moving along a path, while in rotational motion, the object is spinning around a fixed point.

4. What is the centripetal force in circular motion?

The centripetal force is the force that keeps an object moving in a circular path. It acts towards the center of the circle and is responsible for constantly changing the direction of the object.

5. How is circular motion related to Newton's laws of motion?

Circular motion is related to Newton's laws of motion because it demonstrates the first law, which states that an object will stay in motion at a constant speed and direction unless acted upon by an external force. It also demonstrates the second law, which states that the force required to keep an object moving in a circle is directly proportional to the mass of the object and the square of its velocity.

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