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

A 36kg girl slides down a slide that is 4.5m long. At the bottom of slide she is moving at 3 m/sec. If slide is inclined at 35 degrees find the coefficient of friction between slide and girl.

2. Relevant equations

Ff = μ*Force normal

Total energy = KE + PE

KE = 1/2 mv^2

PE = mgh

Total energy = F cosθ

3. The attempt at a solution

KE = 162 using above formula, PE = 911.15. Total energy = 1073.15

F = 1310.32 using the cosθ formula.

And that is where I am stuck - is the F the normal force or the Ff (from friction) how would I solve for the coefficient from this point? And have I even approached it in the right way so far?

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# Coefficient of Friction between slide/girl

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