Time taken for the big mass to achieve max amplitude

AI Thread Summary
The discussion revolves around the time taken for two bobs, one made of paper and the other of metal, to reach maximum amplitude when driven to oscillate. It highlights that the paper bob experiences greater air resistance, resulting in a smaller amplitude compared to the metal bob, which affects the time to reach maximum amplitude. Participants express confusion over the question's clarity and the lack of provided values, questioning whether the scenario involves damped or driven oscillation. The discussion also touches on the mathematical representation of amplitude in oscillatory motion, seeking clarification on the conditions for reaching maximum amplitude. Overall, the conversation emphasizes the need for clearer parameters and definitions to address the problem effectively.
desmond iking
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Homework Statement





the driver is made to oscillate. then the energy will be transferred to the other bob . the other bob oscillate as well

all the ball are of the same frequency, as they have the same length. the air resistance is significant for smaller mass bob(paper bob) , so it has smaller amplitude compared to metal bob. my question is what's the time taken for both the bob to reach maximum amplitude( as shown in the photo) ,

Homework Equations





The Attempt at a Solution



my ans would be the paper bob would take longer time to reach maximum amplitude... as at the given same time frame, the displacement of metal bob from equlibrium position is greater than of the paper bob



what's wrong with the server? i can't upload the image...

here's the image
http://i.imgur.com/sB47t3l.jpg


http://i.imgur.com/3yiziKX.jpg
 
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Please help me on this! Thank you
 
What have you tried? Are we looking at damped oscillation or driven damped?
 
The question makes no sense, The picture is useless, the grammar is not helping...
 
dauto said:
The question makes no sense, The picture is useless, the grammar is not helping...

I agree to an extent. I think I understand what is being asked, but I don't really know what we're dealing with here, and I have no idea how to go about it with the given information. Not even a list of known values?
 
BiGyElLoWhAt said:
I agree to an extent. I think I understand what is being asked, but I don't really know what we're dealing with here, and I have no idea how to go about it with the given information. Not even a list of known values?

This is my own question here. Just to verify my concept.
 
I refer to the driven pendulum. Condition: no dampling occur.
 
So it's driven, as if by a motor, but no dampening? So no drag?
 
Yes.
 
  • #10
whats the time it takes an object oscillating at omega to reach max amplitude? or what does math amplitude mean mathematically?

If i have a position function Asin(omega t + phi) = x
what must x equal in order for the oscillator to be at max amplitude?
 

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