Angular deceleration of a circular saw blade

Click For Summary

Homework Help Overview

The discussion revolves around calculating the angular deceleration of a circular saw blade, focusing on the relationship between angular velocity and deceleration. Participants are examining the application of a specific formula related to angular motion.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are discussing the values used for angular velocity (w) and questioning the units involved, particularly the conversion from revolutions per second to radians per second.

Discussion Status

The conversation is ongoing, with participants clarifying the values and units used in their calculations. There is an indication of confusion regarding the correct interpretation of the given data.

Contextual Notes

There is a mention of the need to convert the given angular velocity from revolutions per second to radians per second, which may impact the calculations being discussed.

Tikki
Messages
3
Reaction score
0
Homework Statement
If a circular saw blade is spinning at a rate of 6.57 revolutions per second, what is the magnitude of the (constant) angular acceleration that needs to be applied on the saw blade to bring it to rest in 17.2 revolutions?
Relevant Equations
theta = no of revs * 2pi
w^2=2a(theta)
I tried the formula I showed up there but got 0.399 instead of 7.88rad/s^2.
 
Physics news on Phys.org
What number did you use for w?
 
kuruman said:
What number did you use for w?
6.57rads/s
 
Tikki said:
6.57rads/s
wait a min?
 
Tikki said:
wait a min?
Yup, it is given in revolutions per second.
 
  • Like
Likes   Reactions: Tikki

Similar threads

  • · Replies 71 ·
3
Replies
71
Views
4K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 13 ·
Replies
13
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
Replies
20
Views
2K
Replies
3
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 33 ·
2
Replies
33
Views
3K