Coeficient of kinetic friction

Thread starter genu
Start date Feb 27, 2009
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Friction Kinetic Kinetic friction

AI Thread Summary

To measure the coefficient of kinetic friction (μk) for an accelerating block using Newton's Laws, the net force (Fnet) can be expressed as the difference between the applied force and the force of friction. The equation Fnet = ma can be rearranged to isolate μk, where the force of friction is determined by the difference between ideal and measured acceleration multiplied by the mass of the block. The relationship can be formulated as μk = (a - anet) / a, where anet is the actual acceleration. Understanding this relationship allows for the calculation of μk in practical experiments. Accurate measurements of acceleration and force are essential for determining the coefficient of kinetic friction effectively.

Feb 27, 2009

genu

Homework Statement

Using Newton's Laws, show how you would measure mu k for an accelerating block.

Homework Equations

Fnet = ma

The Attempt at a Solution

I can't seem to relate Fnet to Mu k...

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Feb 27, 2009

LowlyPion

Homework Helper

Won't the Force of friction be the difference between the ideal acceleration and measured acceleration times the mass?

a_net = a - μ

a - a_net = μ

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