Find acceleration and centripetal force

Click For Summary

Homework Help Overview

The discussion revolves around understanding the acceleration and centripetal force of objects that do not move in a circular path or at uniform speed. Participants are attempting to rank the rate at which the direction of each object's velocity is changing based on given motion data.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants are questioning the nature of the motion and the representation of acceleration in the provided context. There is uncertainty about how to approach the ranking of velocity changes without clear radius information.

Discussion Status

Some participants have provided insights into the nature of the plotted data, noting the distinction between the motion and the acceleration. There is acknowledgment of the stress related to homework deadlines, and some guidance has been offered regarding the components of acceleration relevant to the problem.

Contextual Notes

Participants express concern over missing information and the implications of submitting assignments with potential errors. There is a mention of upcoming deadlines that may affect the discussion's focus.

isukatphysics69
Messages
453
Reaction score
8

Homework Statement


Rank the rate at which the direction of each object's velocity is changing, greatest first.

Homework Equations


n/a

The Attempt at a Solution


I know a centripetal = v^2/r, but i don't have r so i am not sure if i am supposed to just eyeball it and draw a reference circle or not..
 

Attachments

  • curve.jpg
    curve.jpg
    56 KB · Views: 623
Physics news on Phys.org
The objects don't move on a circle, and they don't move at uniform speed either.

What is plotted here? Two spatial dimensions? Blue is the motion I guess. Can you figure out what red is?
 
mfb said:
The objects don't move on a circle, and they don't move at uniform speed either.

What is plotted here? Two spatial dimensions? Blue is the motion I guess. Can you figure out what red is?
Red is acceleration here I'm sorry i forgot to mention
 
mfb said:
The objects don't move on a circle, and they don't move at uniform speed either.

What is plotted here? Two spatial dimensions? Blue is the motion I guess. Can you figure out what red is?
i already submitted the assignment, i still have another physics homework and a physics test tomorrow and i am very stressed >=[

submitted that assignment with the wrong answer
 
isukatphysics69 said:
Red is acceleration
Okay (although it looks odd in (b), there should be an acceleration).
For the change in direction the acceleration along the direction of motion does not matter. Can you find the acceleration orthogonal to it?
 

Similar threads

Replies
16
Views
952
  • · Replies 4 ·
Replies
4
Views
1K
Replies
12
Views
2K
Replies
31
Views
2K
  • · Replies 9 ·
Replies
9
Views
5K
  • · Replies 28 ·
Replies
28
Views
3K
Replies
55
Views
3K
Replies
3
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K