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    kevjack12's Avatar
    kevjack12 Posts: 1, Reputation: 1
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    #1

    Oct 9, 2011, 08:39 PM
    Sliding up a ramp
    A frictionless track is to be built as shown, with L= 4.7 m and H= 4.6 m. In order to get the cart to slide from the top to the end of the track in the minimum time, how long should the distance D be? Assume that the speed of the cart on the horizontal surface is the same as at the bottom of the ramp.

    http://loncapa.gwu.edu/res/msu/physi...ob05_ramp2.gif
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Oct 9, 2011, 11:16 PM
    The image doesn't work. I seems that one needs to sign in to be able to see the image...

    And I have no idea how you can change D without changing L and H, but then, I'm certainly not understanding how the ramp is.
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