Uniform circular motion - simple problem

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Homework Help Overview

The problem involves a girl running around a circular fountain with a specified diameter and time to complete one full rotation, focusing on calculating her angular speed.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the calculation of angular speed based on the given time and diameter, with one participant noting a potential misunderstanding regarding the time value used in the calculation.

Discussion Status

The discussion includes clarifications about the time measurement and informal exchanges among participants. There is no explicit consensus on the calculation method yet, but some guidance has been offered regarding the interpretation of the time value.

Contextual Notes

Participants are addressing a specific homework problem, and there seems to be a focus on the correct representation of mathematical symbols, which may indicate a broader concern about notation in physics problems.

Femme_physics
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Homework Statement



A girl is running around a circular fountain with a diameter of 6.5m. If it takes her 72 seconds to run all the way around, what's her angular speed?

The Attempt at a Solution



I appear to be getting a wrong answer: (look only at the thick black marker)

http://img263.imageshack.us/img263/548/radsec.jpg
 
Last edited by a moderator:
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The time is 72 seconds not 1/72.
 
Thanks Doc :) My silly err. you're awesome!
 
Hi Femme_physics! :smile:

Why do you write π like that? :confused:

Shouldn't π have a hat to keep its legs cool? o:)​
 
Heh, you're on to me tiny-tim ;) I don't know how to properly write pi! I'll work on that :-)
 

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