Simple Harmonic Motion - Speed

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Homework Help Overview

The discussion revolves around calculating the speed of a block in simple harmonic motion (SHM) as it passes through the equilibrium position, with given parameters such as spring constant (k), mass (m), and period (T).

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the relevance of angular velocity (w) and its units, questioning whether the correct equation is being used for speed in SHM. There are inquiries about the sufficiency of the provided information to solve the problem.

Discussion Status

Some participants have pointed out that the original poster may not have enough information to calculate the speed. There is a recognition of the need for clarity in the problem statement, and one participant indicates they have found a way to approach the problem using kinetic energy from a previous question.

Contextual Notes

Participants note that the original poster should provide complete problem statements as per homework guidelines to facilitate better assistance.

Jess_18033152
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Homework Statement


Calculate the speed of the block in SHM as it moves through equilibrium position.

k= 45.08248265 N/m
m of block = 0.505kg
T = 0.665s

Homework Equations


w= the square root of (k/m) ?

The Attempt at a Solution


w = the square root of (45.08248265/0.505)
= 9.448398958
= 9.45 (what units for SHM?) (3sf)

Is this the equation I use? And what are the units for speed when in SHM?
 
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The quantity w is not a speed, it is an angular velocity. You should be able to deduce its units from how it is constructed.

Also, the problem does not contain sufficient information to give you the requested information.
 
Orodruin said:
The quantity w is not a speed, it is an angular velocity. You should be able to deduce its units from how it is constructed.

Also, the problem does not contain sufficient information to give you the requested information.
What equation would you suggest I use then?
 
Jess_18033152 said:
What equation would you suggest I use then?
For what?
 
Orodruin said:
For what?
To calculate speed for an object in SHM as it moves through equilibrium position, given m of object= 0.505kg, k= 45.08248265, T (period) = 0.665s ?
 
As I already said, you cannot.
 
Orodruin said:
As I already said, you cannot.

Sorry, worked out how to do it now, it required me using the kinetic energy I had worked out in the previous question. Thank you though :)
 
Jess_18033152 said:
Sorry, worked out how to do it now, it required me using the kinetic energy I had worked out in the previous question. Thank you though :)
So, for the future, please give the full problem statement as required by the homework guidelines. You cannot expect us to guess information that you are not giving us.
 

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