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    Name:  1455703397522-391350151.jpg
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Size:  261.4 KB I have worked out that resistance force is 575n for a but for b, why doesn't he resistance stay the same even though the object is not on a hill anymore? In b the answer involves using 575n but how could it work? Thank you.
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    (Original post by coconut64)
    Name:  1455703397522-391350151.jpg
Views: 55
Size:  261.4 KB I have worked out that resistance force is 575n for a but for b, why doesn't he resistance stay the same even though the object is not on a hill anymore? In b the answer involves using 575n but how could it work? Thank you.

    the resistance in this problem is non gravitational
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    (Original post by TeeEm)
    the resistance in this problem is non gravitational
    What do you mean by non gravitational in this question?? Thanks
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    (Original post by coconut64)
    What do you mean by non gravitational in this question?? Thanks
    air resistance for example
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    (Original post by TeeEm)
    air resistance for example
    Yes I understand that there is only one resistance force which is 575 worked out in a. But what I don't understand is that since the object is not on the hill, one of the horizontal force will be removed, so surely resistance will be bigger as a result?but the answer uses 575 , which I don't get Thanks
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    (Original post by coconut64)
    Yes I understand that there is only one resistance force which is 575 worked out in a. But what I don't understand is that since the object is not on the hill, one of the horizontal force will be removed, so surely resistance will be bigger as a result?but the answer uses 575 , which I don't get Thanks
    still the same air resistance
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    (Original post by TeeEm)
    still the same air resistance
    It doesn't make sense though, I would never have thought of that in the exam...
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    (Original post by coconut64)
    It doesn't make sense though, I would never have thought of that in the exam...
    makes perfect physical sense
    The air resistance should not change
 
 
 
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