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posted by  Zorro on 11/7/2009 9:02:51 AM  |  status: Closed  |  Earned Karma: 0

Problem 50

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Calculus Based Physics Fundamentals of Physics Extended (8th) by Halliday, Resnick, Walker 8 50 11/12/2009 at 10:30:00 AM
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 In the figure below, a block slides down an incline. As it moves from point A to point B, which are 6.8 m apart, force  acts on the block, with magnitude 1.7 N and directed down the incline. The magnitude of the frictional force acting on the block is 8.8 N. If the kinetic energy of the block increases by 33 J between A and B, how much work is done on the block by the gravitational force as the block moves from A to B


fig08_49.gif

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posted by christina.S on 11/7/2009 9:18:06 AM  |  status: Live
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posted by Zorro on 11/7/2009 10:32:21 AM  |  status: Live
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Thanks! That helped. 
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