Question on acceleration and string-HELP

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Homework Help Overview

The discussion revolves around a physics problem involving the effects of gravity on a set of weights tied to a string, focusing on how the distances between the weights relate to the time it takes for them to land and produce sounds. The subject area includes concepts of acceleration due to gravity and kinematics.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the relationship between the distances separating the weights and the time intervals of the sounds produced as they land. Questions arise about the implications of using strings versus rigid poles and the relevance of kinematic equations to the scenario.

Discussion Status

The discussion is ongoing, with participants seeking clarification and hints regarding the problem. Some guidance has been offered regarding the constant acceleration experienced by the weights and the initial conditions of the system. Multiple interpretations of the problem are being explored, particularly concerning the effects of acceleration on the distances between the weights.

Contextual Notes

Participants express a need for more detailed explanations and hints, indicating that the problem may involve complex reasoning about motion under constant acceleration. There is a focus on understanding the implications of the setup and the relationships between the weights.

Aleksandar
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I need big help on this question guys:

One test for the effects of the acceleration of gravity is to tie a set of weights to a string, with the second lowest searated from the lowes by L0, the third lowest from the second lowest by L1, and so forth, and to then drop the string. Suposing that free fall corresponds to motion with constant acceleration, how would separations L1, L2,...,Ln (where n is the number of weights) be related to L0 if the sounds made by the weights as they land form a steady beat? The lowest weight starts at the surface onto which the other weights fall.

I NEED HUGE HELP FOR THIS QUESTION
PLEASE HELP ME
If you can also explain me into more detail so I can get it easily.
 
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Since the acceleration of gravity is constant, what is the difference between having strings between the objects, and having rigid poles? Is there any difference? If not, why not?

What is the kinematic equation that relates the acceleration of an object to its velocity and position?
 
I still don't get it. Can you explain the question in detail. Can you guys please give me more hints if possible. PLEASE
 
MASSIVE HINT: Is the distance between the weights going to change? Note that as berkeman said, the acceleration experienced by each object is constant and equal. Note also that all the weights begin from rest (vi=0) and the bottom weight starts on the surface (x0=0)
 
Aleksandar said:
I still don't get it. Can you explain the question in detail. Can you guys please give me more hints if possible. PLEASE

What happens if you have four weights separated by strings of equal length on a horizontal surface, and then push them together at a constant speed (i.e., no acceleration)? You get Hup two three four, or BONG BONG BONG BONG, equally spaced sounds. This is related to the equation of motion for constant velocity and distance: x = vt.

What is the equivalent equation of motion for constant acceleration, and how does this change the situation for the four weights?

Dorothy
 

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