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initiated his siue Suppose you are pulling a 4.2-kg block across a rough, horizontal surface with a spring that has a spring constant of 100 N/m. What is the coefficient of kinetie friction between the surface and the block if the spring stretches by 3.2 em when you pull on the block at angle of 15° above the horizontal? Assume the block is moving with constant velocity
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on 3.2 321 าว่า ,、p.KE-3.0108.8一 う = 0.09809 cohcient of ci buer 4I. IG burfaee and bock is,

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