(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A block starts from rest and slides down a long slope with length d, angled at [tex]\theta^0[/tex] to the horizontal. The coefficient of kinetic friction between block and slope is [tex]\mu_k[/tex] At the end of the slope, it compresses a spring with spring constant [tex]k[/tex] to a compression [tex]x[/tex]. What is the mass of the block?

3. The attempt at a solution

[tex]\sum W = \Delta K[/tex]

[tex]\frac{-kx^2}{2} + mgdsin\theta - \mu_k mgd = 0[/tex]

[tex]m = \frac{kx^2}{2gd(sin\theta - \mu_k)}[/tex]

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# Homework Help: Find the mass, ramp, spring

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