ch06-p007 - 7. We choose +x horizontally rightwards and +y...

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With μ k = 0.25, Eq. 6-2 leads to f k = 11 N. (b) We apply Newton’s second law to the x axis: () 2 15 N cos 40 11 N cos 0.14 m/s 3.5 kg k Ff m a a θ °− −= ¡ == . Since the result is positive-valued, then the block is accelerating in the + x (rightward) direction. 7. We choose + x horizontally rightwards and +
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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