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Thread: Calculate velocity of impact for tilting object?

  1. #1 Calculate velocity of impact for tilting object? 
    Forum Freshman
    Join Date
    Aug 2010
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    The object it a rectangle, its dimensions are :
    length: 1m
    width: 1m
    height: 10m
    weight: 100kg

    The object initially makes an angle of 89 degrees with the perfectly flat ground on its left side.

    At what velocity will the top of the object's left side strike the ground, neglecting air resistance ?
    ----

    I'm sorry if there are any errors in my question, this isn't from a textbook or anything I was just wondering how one would go about solving it. I'd certainly be more than happy to revise the question.


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  3. #2 Re: Calculate velocity of impact for tilting object? 
    Forum Ph.D. Leszek Luchowski's Avatar
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    Quote Originally Posted by m84uily
    At what velocity will the top of the object's left side strike the ground (...) ?
    Will it? I'd think if it was almost upright to begin with (89 degrees is nearly vertical), it won't fall. It will just oscillate a bit left and right. I mean, right and left, and right, and left again...

    If you make its base narrower, or the initial inclination greater, so the object will really be off balance, then I suggest you use the law of conservation of energy to compute the impact velocity - think how much the potential energy of the object is reduced when its position changes from standing to lying down; that amount of energy will have been converted into cinetic.

    Hope this helps.


    Leszek. Pronounced [LEH-sheck]. The wondering Slav.
    History teaches us that we don't learn from history.
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