Solving Angular Acceleration: Tips and Help for Inclined Planes and Formulas

Click For Summary
SUMMARY

This discussion focuses on solving problems related to angular and linear acceleration on inclined planes, specifically addressing the confusion surrounding the application of Newton's second law (F=ma) and the concept of angular acceleration. The participant suggests using a free body diagram (FBD) to analyze the linear motion of the center of a circle, employing a 5-12-13 triangle for calculations instead of traditional trigonometric functions. Additionally, the discussion raises a critical question about the existence of angular acceleration for a point at the center of a circle, noting that with a radius of zero, traditional formulas for angular displacement and acceleration become inapplicable.

PREREQUISITES
  • Understanding of Newton's second law (F=ma)
  • Familiarity with free body diagrams (FBD)
  • Knowledge of linear and angular acceleration concepts
  • Basic trigonometry, specifically the properties of right triangles
NEXT STEPS
  • Study the application of Newton's second law in rotational dynamics
  • Learn how to effectively create and interpret free body diagrams for complex systems
  • Research the relationship between linear and angular acceleration, particularly in circular motion
  • Explore the implications of having a radius of zero in angular motion equations
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators seeking to clarify concepts of angular and linear acceleration in inclined planes.

tidus1117
Messages
1
Reaction score
0

Homework Statement



http://img166.imageshack.us/img166/6047/cilinderox6.jpg

Homework Equations



Tangent Acceleration, Linear Acceleration

The Attempt at a Solution



I tried to made a free body diagram but i got confused with the inclined plane I am stuck there. Also with the Formulas for the accelerations...

PLEASE SOMEONE HELP ME!
 
Last edited by a moderator:
Physics news on Phys.org
ok I've been thinking about this and i think it might be two questions in one.

first, to analyze the linear motion of the center of the circle G. i would just treat the center as a particle, and use F=ma. draw out your FBD, use that 5-12-13 triangle instead of trig functions but in the same manner, that should get you the linear acceleration.

the second part is where i am getting confused. does the center of a circle have a angular acceleration? because the first derivation of angular acceleration would be displacement, S=(theta)(radius), but here radius is equal to zero, and therefore we have no S and therefore, no angular acceleration...


just an idea...
 

Similar threads

Replies
3
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 7 ·
Replies
7
Views
7K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 18 ·
Replies
18
Views
6K
  • · Replies 27 ·
Replies
27
Views
4K
Replies
18
Views
3K
Replies
11
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K