problem06_63

University Physics with Modern Physics with Mastering Physics (11th Edition)

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6.63: See Problem 6.62: The work done is negative, and is proportional to the distance s that the package slides along the ramp, s θ μ θ mg W ) cos (sin k - = . Setting this equal to the (negative) change in kinetic energy and solving for s gives ) cos (sin 2 ) cos (sin ) 2 /
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Unformatted text preview: 2 1 k 2 1 θ μ θ g v θ μ θ mg mv s-=--= m. 6 . 2 ) 12 cos ) 31 . ( 12 )(sin s / m 80 . 9 ( 2 m/s) 2 . 2 ( 2 2 = °-° = As a check of the result of Problem 6.62, s / m 4 . 1 ) m 6 . 2 /( ) m 5 . 1 ( 1 ) s / m 2 . 2 ( =-....
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