Pendulum acceleration homework

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Homework Help Overview

The problem involves calculating the acceleration due to gravity using the properties of a pendulum. The pendulum is specified to be 2.00 m long and completes 84.5 oscillations in 4.00 minutes.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to use the formula for gravitational acceleration based on the period of the pendulum but questions the validity of their result. Other participants suggest finding the time for one complete oscillation and point out a potential misunderstanding regarding the period calculation.

Discussion Status

The discussion is ongoing, with participants exploring the correct interpretation of the period of oscillation and its implications for the calculation of gravitational acceleration. Some guidance has been offered regarding the calculation of the period, but no consensus has been reached.

Contextual Notes

There appears to be confusion regarding the conversion of total time into the period of a single oscillation, which is critical for the calculations being discussed.

ahrog
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Homework Statement



A pendulum with is 2.00 m long makes 84.5 complete oscillations in 4.00 minutes. What is the acceleration of gravity at that spot?


Homework Equations



TG=(4pi^2/T^2)L


The Attempt at a Solution



g=(4pi^2/240s^2)2.00m
g= 0.0013707...

Which doesn't make sense, and it seems way to simple to be getting 8 marks for it. What am I missing?
 
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Find the time for one oscillation.
 


In your solution you seem to have just put in 240s for the period. This would certainly be true if the pendulum completed one oscillation in four minutes...
 


Oh geez *smacks head* Such an easy solution. Thanks!
 

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