What Does the "p" in "1.25p r/s2" Mean?

  • Thread starter Thread starter amcavoy
  • Start date Start date
  • Tags Tags
    Mean
Click For Summary

Homework Help Overview

The discussion revolves around the interpretation of the symbol "p" in the context of angular acceleration expressed as "1.25p r/s²." The subject area pertains to rotational motion and angular dynamics.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the meaning of "p," with suggestions ranging from it being a unit like pico to a representation of pi. There is uncertainty about its significance in the context of angular acceleration.

Discussion Status

The discussion is active, with participants sharing their thoughts and interpretations. Some have proposed potential meanings for "p," while others have expressed confusion about its usage in the problem statement. A participant later clarifies that "p" represents pi, although questions remain about its inconsistent notation.

Contextual Notes

Participants note that the problem involves a block attached to a rod rotating in a vertical circle, with the angular acceleration affecting subsequent calculations. There is an emphasis on the importance of correctly interpreting "p" to arrive at accurate answers.

amcavoy
Messages
663
Reaction score
0
I have a question that says "the angular acceleration is 1.25p r/s2." What does the "p" mean?

Thanks.
 
Physics news on Phys.org
Could it be pico? It might help to know the context.
 
A small block of mass m = 0.400 kg is attached to a massless rod of length L = 1.00 m and rotated in a vertical circle with uniform angular acceleration 1.25p r/s2. Assume the mass starts from rest at the top of the circle and rotates clockwise.

...the questions follow after that (such as what is the angular speed at 2 sec), but when I answered them without regard to the "p," I got the answers wrong. This makes me think the "p" actually means something, I just don't know what.

Thanks again.
 
Could this be momentum? I don't know why it would be here, but that's the only thing I can think of...

Edit: Sorry about that. I found out it represented pi. I don't know why it was written only with a p in that particular question (since it was written as "pi" throughout the others), but that's how it goes.

Thanks again.
 
Last edited:

Similar threads

Kinematics, is this a poorly worded question?
  • · Replies 7 ·
Replies
7
Views
1K
Collision of a bullet on a rod-string system: query
  • · Replies 71 ·
3
Replies
71
Views
5K
Problem with the power of car
  • · Replies 3 ·
Replies
3
Views
2K
What is the Linear Distance and Angular Velocity of a Rotating Potter's Wheel?
  • · Replies 7 ·
Replies
7
Views
2K
A misconception I have about impulse formula interpretation
  • · Replies 2 ·
Replies
2
Views
2K
Rating speeds from least to greatest from a position time graph
  • · Replies 1 ·
Replies
1
Views
1K
Question about Projectile Motion: Throwing a Flower Pot from a Balcony
  • · Replies 18 ·
Replies
18
Views
2K
MIT OCW 8.01 PS10.6: A Massive Pulley and a Block on an Incline
  • · Replies 5 ·
Replies
5
Views
1K
Riding a bicycle around a tree w/ constant acceleration
  • · Replies 20 ·
Replies
20
Views
3K
Torque about an accelerating point
  • · Replies 5 ·
Replies
5
Views
3K