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Pendulum question

  • Thread starter Kaneki
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  • #1
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Homework Statement


A pendulum oscillates 24.0 times per minute in a particular location. If the
pendulum is 1.53 m long, what is the acceleration due to gravity there?

Homework Equations



T = 2π√ l/g

The Attempt at a Solution



I don't have one because i literally got into this unit. Im really confused and this hurts my brain
 

Answers and Replies

  • #2
DrClaude
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Do you have a specific question?
 
  • #3
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Do you have a specific question?
i guess, how would i solve this?
 
  • #4
haruspex
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i guess, how would i solve this?
You posted an equation. Equations are kind of useless unless you understand what the variables in it refer to. What do you think the T, l and g refer to in your equation?
 
  • #5
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You posted an equation. Equations are kind of useless unless you understand what the variables in it refer to. What do you think the T, l and g refer to in your equation?
You're right, it's just that it was on my homework sheet so I thought it might be important to post it. I think g refers to gravity, l refers to length but t I don't know, would T be time?
 
  • #6
haruspex
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You're right, it's just that it was on my homework sheet so I thought it might be important to post it. I think g refers to gravity, l refers to length but t I don't know, would T be time?
Yes. Specifically, it is the period of the pendulum. Do you know what that means, and how it relates mathematically to the rate of oscillation?
 
  • #7
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Yes. Specifically, it is the period of the pendulum. Do you know what that means, and how it relates mathematically to the rate of oscillation?
Period of the pendulum must mean how long it goes back and forth in 'x' amount of time, Idk, I'm sorry, I'm new. Now I can't deduct how it would relate to it Mathematically. Would it be to calculate to see how long it would take for the pendulum to go back and forth if the length was 'x' . Sorry, never mind. I don't know why it relates to it mathematically.
 
  • #8
haruspex
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Period of the pendulum must mean how long it goes back and forth in 'x' amount of time,
Not quite - it's the time it takes to go back and forth once, i.e. to complete one oscillation.
Suppose a pendulum goes back and forth 10 times each second. What would its period be? What would its rate of oscillation be?
 
  • #9
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Not quite - it's the time it takes to go back and forth once, i.e. to complete one oscillation.
Suppose a pendulum goes back and forth 10 times each second. What would its period be? What would its rate of oscillation be?
hmm, i dont clearly understand the question. If period is the time it takes to go back and forth once. would the period be one second?
 
  • #10
haruspex
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hmm, i dont clearly understand the question. If period is the time it takes to go back and forth once. would the period be one second?
No. If something happens ten times in a second, how long it take to happen once?
 
  • #11
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No. If something happens ten times in a second, how long it take to happen once?
I am about to embarrass myself but my only guess or the only thing i can think of is, a millisecond? sorry,,, it takes time for me understand,,,
 
  • #12
haruspex
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I am about to embarrass myself but my only guess or the only thing i can think of is, a millisecond? sorry,,, it takes time for me understand,,,
If it takes a millisecond to do a thing once, would it take a second to do it ten times?
 
  • #13
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If it takes a millisecond to do a thing once, would it take a second to do it ten times?
scratch that please,
If it takes a millisecond to do a thing once, would it take a second to do it ten times?
my next guess is 10 seconds
 
  • #14
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scratch that please,


my next guess is 10 seconds
wait would it be 10 periods
 
  • #15
haruspex
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scratch that please,


my next guess is 10 seconds
I'm not interested in guesses. Let me know when you've worked it out.
 

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