Calculating Force and Angular Momentum in Rolling Mechanics Experiment

In summary, the conversation discusses an experiment involving a magnetic stirrer, a marble, and a beaker of water. The stirrer creates a vortex, causing the marble to roll along the edge of the beaker. The question is whether it is possible to calculate the force needed to roll the marble at a specific speed, and if so, whether it is possible to determine the angular momentum of the water. Equations are requested to aid in this calculation. One person realizes they can calculate the force needed to roll the marble, but is unsure how to translate this into the angular momentum of the water. They propose an assumption that the rotation energy and kinetic energy of the ball is equal to the kinetic energy of the water.
  • #1
powerball
13
0
The experiment consists of a magnetic stirrer and a marble in a beaker of water. When the magnetic stirrer is turned on a vortex is formed and the marble rolls along the edge of the beaker. If the speed of the marble is known, is it possible to work out the force required to roll the marble at a certain speed. If the force is worked out is it possible to work out the angular momentum of the water. Equations are much appreciated.
 
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  • #2
Actually that was dumb i can work out the force needed to roll the ball. The problem is just how to translate that into the angular momentum of the water
 
  • #3
hmm can i assume that the rotation energy + kinetic energy of the ball is equal to the kinetic energy of the water?
 

FAQ: Calculating Force and Angular Momentum in Rolling Mechanics Experiment

What is rolling mechanics?

Rolling mechanics is a branch of mechanics that deals with the movement of objects that roll, such as wheels or balls. It involves studying the forces and motion involved in the rolling motion of these objects.

How is rolling mechanics different from other types of mechanics?

Rolling mechanics is different from other types of mechanics, such as statics or dynamics, because it specifically focuses on the rolling motion of objects. It takes into account both the translational and rotational motion of the rolling object.

What are some real-life applications of rolling mechanics?

Rolling mechanics has many real-life applications, including the design and analysis of vehicles, such as cars and bicycles. It is also used in sports, such as bowling and golf, as well as in the manufacturing of rolling bearings and other mechanical systems.

What are the key factors that affect rolling mechanics?

The key factors that affect rolling mechanics include the shape and size of the rolling object, the surface it is rolling on, the forces acting on the object, and the initial conditions of the rolling motion. Friction, both static and kinetic, also plays a significant role in rolling mechanics.

How is rolling resistance related to rolling mechanics?

Rolling resistance is the force that opposes the rolling motion of an object. It is directly related to rolling mechanics as it is influenced by the same factors, such as the shape and size of the object and the surface it is rolling on. Understanding rolling mechanics can help in minimizing rolling resistance and improving the efficiency of rolling objects.

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