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Sw0rDz
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Homework Statement
A 22.9-kg girl slides down a playground slide with a vertical drop of 3.29 m. When she reaches the bottom of the slide, her speed is 1.34 m/s. How much energy was dissipated by friction?
Homework Equations
I used [tex]\Delta[/tex]KE + [tex]\Delta[/tex]PE = 0
The Attempt at a Solution
I got KEinitial = 0
KEfinal = 1/2 * 22.9kg * (1.34)2 = 20.56
I got PEinititial = m * g * h = 22.9 * 9.8 * 3.29 = 738.34
PEfinal = 0
20.56 (Friction) = 738.34
Is that on the right track? Where would I go from there?