What are the units for m and Delta m in the spring formula?

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Homework Help Overview

The discussion revolves around the units of mass (m) and the change in mass (Delta m) in the context of a spring formula related to oscillating systems. Participants are trying to clarify the correct units to use in the formula and the implications of those units on calculations.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning whether the mass (m) in the formula should be expressed in kilograms or grams, and how this affects the error calculation. There is also a discussion about the interpretation of Delta as "uncertainty" rather than "change".

Discussion Status

Some participants have provided insights regarding the use of SI units, suggesting that mass should be in kilograms. However, there is still confusion among participants about the correct units and their implications, indicating that multiple interpretations are being explored.

Contextual Notes

Participants mention mixed results among classmates and express a desire for clarity on the proper units to use in their calculations, highlighting the need for consistency in unit usage.

SS2006
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i have this error formula

1/2 (change in m/m + change in k/k) * square root of m/k

now my question is

the m in the m/k is that in kg or grams

and the m in the change in m/m is that in grams or kg

my classmates are having mixed results, I am confused, want to kow the real way
thanks
 
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the real formula were trying to prove

2 (pie) * root of m/k

the m was in KG so I am assuming in the error its in KG too right
 
noone ?!
please ppl
 
Hey, I believe the formula you have is one used to calculate the period of an oscillating mass-spring system.

Anyway, in order to obtain clear working, we normally express all physical quantities in SI units. The SI unit for mass is kg, and I suppose if you used kg as the unit for mass in your calculations, the error will also be in kg.

Hope this helps!
 
Delta m / m is unitless ... so is Delta k /k !
They must be, because you add them!

By the way: HERE, Delta means "uncertainty", not change.
 

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