Rotational Movement of a Disc

In summary, the project involves studying the relationships between various variables such as angular velocity, displacement, acceleration, and kinetic energy of the system, as well as the falling masses and the number of winds. The setup consists of a disc with two holes through which strings are attached to masses and go over a pulley. The researcher also mentions the potential energy of the system and the need for calibrating parameters.
  • #1
oshin
1
0
Moved from a technical forum, so homework template missing
I am doing a project, but am struggling to find relationships of proportionality or formulae between my dependent variables (angular velocity, displacement, acceleration of the disc and kinetic energy of the system) and my independent variables (falling masses and then the number of winds) or any other relationships that can occur such as how the moment of inertia of the disc may effect the rotational movement. Below is a picture of my setup. It works by winding the disc, and then releasing it to unwind. The disc has two holes which the strings go through and the strings are attached to masses that go over the pulley.
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  • #2
Hello oshin, ##\qquad## :welcome: ##\qquad## !

Here at PF we encourage posters to give it a try and then ask for assistance.
You have a nice setup and mention a bunch of variables; give them a name and make some hypotheses about their relationship in the form of equations.
oshin said:
angular velocity, displacement, acceleration of the disc and kinetic energy of the system, falling masses and the number of winds
You may also need the potential energy of the system and perhaps a damping factor
Next would be to calibrate some parameters, for example: if you assume displacement = ##k## x number of turns, you need to determine ##k##
 

What is rotational movement?

Rotational movement, also known as angular motion, is the movement of an object around an axis or center point. It involves the object rotating about its axis in a circular path.

What is a disc?

A disc is a circular object that has a flat, round shape and is typically thin in comparison to its diameter. It can be solid, like a coin, or hollow, like a CD.

What factors affect the rotational movement of a disc?

The rotational movement of a disc is affected by several factors, including the mass of the disc, the distance between the center of the disc and the axis of rotation, and the angular velocity or speed of the disc.

How is rotational movement measured?

Rotational movement is typically measured in units of radians or degrees. One radian is equal to the angle subtended by an arc of a circle with the same length as the radius of the circle, while one degree is equal to 1/360th of a full rotation.

What are some real-life examples of rotational movement of a disc?

Some real-life examples of rotational movement of a disc include the rotation of a CD or DVD in a CD player, the spinning of a coin on a flat surface, and the movement of wheels on a car or bicycle. Other examples can be found in machinery, such as gears and pulleys.

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