How Does Dimensional Analysis Validate Units in Physics Problems?

Thread starter JakePearson
Start date Jul 30, 2009
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Analysis Dimensional analysis

AI Thread Summary

The discussion focuses on evaluating the expression for mass given specific values for distance, time, and mass. It highlights a misunderstanding regarding the calculation of m^3 from mass, indicating that the units obtained were incorrect. Participants express confusion about the relevance of the distance and time values provided in the problem. The need for clarity in dimensional analysis and unit validation in physics problems is emphasized. Overall, the conversation underscores the importance of accurate unit conversion and understanding the context of given variables.

Jul 30, 2009

JakePearson

given a distance s = 8.6m, time t = 2s, and a mass = 1.01kg, evaulate the expression to a physically appropriate accuracy?

m³ = 1.01³ = 3.03kg

is this correct

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Jul 30, 2009

fluidistic

Gold Member

No.
I don't know if I understand what they ask. Do they ask for m^3, where m is the mass? If so, check out the units that you got. They are wrong. (1.01 kg)^3=?
I don't see the point of s=8.6 and t=2s though.

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