What determines the net work on a hockey puck in circular motion?

Click For Summary

Homework Help Overview

The discussion revolves around the net work done on a hockey puck in circular motion on a frictionless table. Participants are exploring the relationship between the mass of the puck, the radius of the circular path, and the speed of the puck.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants are attempting to relate the concepts of acceleration, net force, and work done in the context of circular motion. Questions are raised about the factors that determine net work, including the puck's mass, the radius of the circle, and its speed.

Discussion Status

Some guidance has been offered regarding the Work-Energy theorem, suggesting a potential direction for understanding the relationship between work and energy in this scenario. Multiple interpretations of the problem are being explored, particularly concerning the variables involved.

Contextual Notes

There is a mention of a forgotten formula for circular motion, indicating a possible gap in foundational knowledge that may affect the discussion.

shenwei1988
Messages
23
Reaction score
0
A hockey puck of mass m sits on a frictionless, horizontal table tied to a string of length L. The puck starts at rest, and accelerates to some speed v moving in a horizontal circle of radius L. The net work done on the hockey puck,depend on what? L,m,or r??

i forgot the formula for the circular motion.
 
Physics news on Phys.org
acceleration = velocity^2 / radius
net force = mass*velocity^2 / radius
 
Work done is force x displacement.
 
Hint: Consider the Work-Energy theorem.
 

Similar threads

Replies
2
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
2
Views
2K
Replies
4
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
Replies
26
Views
14K
Replies
5
Views
2K
Replies
1
Views
2K
  • · Replies 14 ·
Replies
14
Views
2K